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Summary

Kazuya's elder sister Kanoko announces her engagement to be married but Kazuya has had a crush on her since he was young and refuses to let her go. He wants to become her lover and be her only man but she refuses because that would be incestuous. She encourages him to build a relationship with his cousin Hikari instead but he won't give up his feelings for his sister. Meanwhile Hikari's father and Kazuya's uncle is dying and both Hikari and Kazuya's aunt Chigusa cling to him in desperation for comfort.

Nuppunupu Oyako Mix!! ~Double Oyako to Lovelove Pension Seikatsu~
Nuppunupu Oyako Mix!! ~Double Oyako to Lovelove Pension Seikatsu~
NAN%
Tags
  • Single Hole Multiple Objects Insertion (obsolete)
  • Sex Involving Food
  • Vaginal + Anal Object Insertion
  • Otaku Protagonist
  • Heroine with Tan Lines
Rating 7.2037 Users
Manbiki Musume Momoiro Seisai - Manbiki Shita Imouto ni Kichiku Oshioki!!
Manbiki Musume Momoiro Seisai - Manbiki Shita Imouto ni Kichiku Oshioki!!
NAN%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Full Sister as a Heroine
  • Oyakodon
  • Siscon Protagonist
  • Blood-related Brother/Sister Incest
Rating 6.6729 Users
Zutto! Josou de Haramasete
Zutto! Josou de Haramasete
NAN%
Tags
  • Cousin Incest
  • Protagonist's Cousin as a Heroine
  • Mother Support Character
  • Trap Protagonist
  • Sex Change
Rating 6.2121 Users
Hipparikko ~Shimai ga H Battle?!~
Hipparikko ~Shimai ga H Battle?!~
NAN%
Tags
  • Protagonist's Rival as a Heroine
  • Discreet Masturbation
  • Oppai Loli Heroine
  • Small Breast Sizes Heroine (Non-Loli)
  • Domicile
Rating 6.3220 Users
Reversible
Reversible
NAN%
Tags
  • University
  • Dramatic Love Triangle
  • Heroine with Catsuit
  • Infidelity
  • Oppai Loli Heroine
Rating 7.1840 Users
Stopping!! 11 the Calamity of Time Stop
Stopping!! 11 the Calamity of Time Stop
NAN%
Tags
  • Time Stop
  • Flat Tints Only
  • Sexual Content
  • ADV
Rating 6.3224 Users
Yokorenbo ~Immoral Mother~
Yokorenbo ~Immoral Mother~
NAN%
Tags
  • Non-blood-related Mother/Daughter Incest
  • Fathercon Heroine
  • Sex with Sleepers
  • Protagonist's Blood-related Mother as a Heroine
  • Protagonist's Non-blood-related Sister as a Heroine
Rating 7.2286 Users
Himegoto-Ai ~Hameru Oyako no Kimochi Yosa~
Himegoto-Ai ~Hameru Oyako no Kimochi Yosa~
NAN%
Tags
  • Mother/Son Romance
  • Protagonist's Older Sister as a Heroine
  • Brother/Sister Romance
  • Palace
  • Royal Protagonist
Rating 6.3637 Users
Kioku Soushitsu no Okaa-san
Kioku Soushitsu no Okaa-san
NAN%
Tags
  • Unbeknown Incest
  • No "Keep Voice on Click" Option
  • Widow Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
Rating 6.2942 Users
Hitozuma Cosplay Kissa 2
Hitozuma Cosplay Kissa 2
NAN%
Tags
  • Cosplay
  • Cafe
  • Twin Footjob
  • Oyakodon Ending
  • Heroine with Children
Rating 7.5138 Users
Kazoku Ai ~Okaa-san to Nee-san wa Boku no Mono~
Kazoku Ai ~Okaa-san to Nee-san wa Boku no Mono~
NAN%
Tags
  • Oyakodon Ending
  • Consensual Phone Sex
  • Dildos
  • Shotacon
  • Discreet Phone Sex
Rating 6.6138 Users
Shoubo Seika ~Haitoku no Majiwari~
Shoubo Seika ~Haitoku no Majiwari~
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Prostitute Heroine
  • Actress Heroine
  • Businesswoman Heroine
Rating 7.0947 Users
Inraku no Ketsuzoku ~Kindan no Jubaku~
Inraku no Ketsuzoku ~Kindan no Jubaku~
NAN%
Tags
  • Inbred Protagonist
  • Inbred Heroine
  • Only Protagonist's Relatives as Heroine(s)
  • Harem Ending with Theme
  • Heroine with Grandchildren
Rating 6.9477 Users
Mama no Sakuranbo Gari♪
Mama no Sakuranbo Gari♪
NAN%
Tags
  • Shotacon Heroine
  • Nympho Protagonist
  • Infidelity
  • Incest
  • Heroine with Garter Belt
Rating 5.8231 Users
Midara na Mansion
Midara na Mansion
NAN%
Tags
  • Janitor Protagonist
  • Promiscuous Heroine
  • Apartment Building
  • Married Heroine
  • Adult Heroine
Rating 6.6322 Users
Sailor Fuku Shinryou Tsumaka ~Naisho no Ecchi na Counseling~
Sailor Fuku Shinryou Tsumaka ~Naisho no Ecchi na Counseling~
NAN%
Tags
  • Widow Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Mother/Son Romance
  • Netori
Rating 6.9060 Users
Toraba!
Toraba!
NAN%
Tags
  • Romancing a Family
  • Swimming Club
  • Class President Heroine
  • Foolish Friend
  • Oyakodon Ending
Rating 6.8824 Users
Bloods ~Inraku no Ketsuzoku 2~
Bloods ~Inraku no Ketsuzoku 2~
NAN%
Tags
  • Incest Romance
  • Heroine with Grandchildren
  • Blood-related Incest
  • Family
  • Protagonist's Twin as a Heroine
Rating 7.1090 Users
Shojo Mama
Shojo Mama
NAN%
Tags
  • Non-blood-related Mother/Son Incest
  • Futanari on Male
  • Clumsy Heroine
  • Domicile
  • Cross-dressing
Rating 6.2420 Users
Shin NOZOKI-ma ~Gesshukuya Kanshi 24 Ji~
Shin NOZOKI-ma ~Gesshukuya Kanshi 24 Ji~
NAN%
Tags
  • Weak-willed Heroine
  • Uncle/Niece Incest
  • Voyeurism
  • Family
  • Rape with Blackmail
Rating 6.5823 Users
Gakushoku no Oba-san ~Kaa-san no Shiru no Aji~
Gakushoku no Oba-san ~Kaa-san no Shiru no Aji~
NAN%
Tags
  • Unbeknown Incest
  • Yamato Nadeshiko Heroine
  • Heroine with Children
  • Cook Heroine
  • Mother/Son Romance
Rating 7.3259 Users
Shimaizuma ~Shimaizuma 3~
Shimaizuma ~Shimaizuma 3~
NAN%
Tags
  • Asian-style Manor
  • Heroine With Kansai Accent
  • Childishly Violent Heroine
  • Unrequited Love
  • Brief Branches Only
Rating 7.3138 Users
Ai Suru Musuko no Shitsukekata ~Mama-tachi no Otoko no Ko M Ka Kyouiku~
Ai Suru Musuko no Shitsukekata ~Mama-tachi no Otoko no Ko M Ka Kyouiku~
NAN%
Tags
  • Straight Shotacon
  • Shotacon
  • Protagonist's Blood-related Mother as a Heroine
  • Shota Protagonist
  • Female Domination
Rating 5.3428 Users
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
NAN%
Tags
  • Non-blood-related Incest
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Brother/Sister Incest
  • Protagonist's Non-blood-related Sister as a Heroine
Rating 7.3130 Users
Gadget
Gadget
38%
Tags
  • Student Club
  • Family
  • Passage of Time
  • Genius Heroine
  • Mother Support Character
Rating 7.6321 Users
Oyako Neburi ~Sasou Hitozuma Dakaretai Oyako~
Oyako Neburi ~Sasou Hitozuma Dakaretai Oyako~
37%
Tags
  • Incest Romance
  • Daydreams
  • Oyakodon Ending
  • Widow Heroine
  • Middle School Student Heroine
Rating 6.8357 Users
Mama no Sakuranbo Gari♪
Mama no Sakuranbo Gari♪
33%
Tags
  • Shotacon Heroine
  • Nympho Protagonist
  • Infidelity
  • Incest
  • Heroine with Garter Belt
Rating 5.8231 Users
Inraku no Ketsuzoku ~Kindan no Jubaku~
Inraku no Ketsuzoku ~Kindan no Jubaku~
32%
Tags
  • Inbred Protagonist
  • Inbred Heroine
  • Only Protagonist's Relatives as Heroine(s)
  • Harem Ending with Theme
  • Heroine with Grandchildren
Rating 6.9477 Users
Shoubo Seika ~Haitoku no Majiwari~
Shoubo Seika ~Haitoku no Majiwari~
31%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Prostitute Heroine
  • Actress Heroine
  • Businesswoman Heroine
Rating 7.0947 Users
Hitozuma Cosplay Kissa 2
Hitozuma Cosplay Kissa 2
31%
Tags
  • Cosplay
  • Cafe
  • Twin Footjob
  • Oyakodon Ending
  • Heroine with Children
Rating 7.5138 Users
Kazoku Ai ~Okaa-san to Nee-san wa Boku no Mono~
Kazoku Ai ~Okaa-san to Nee-san wa Boku no Mono~
30%
Tags
  • Oyakodon Ending
  • Consensual Phone Sex
  • Dildos
  • Shotacon
  • Discreet Phone Sex
Rating 6.6138 Users
Himegoto-Ai ~Hameru Oyako no Kimochi Yosa~
Himegoto-Ai ~Hameru Oyako no Kimochi Yosa~
30%
Tags
  • Mother/Son Romance
  • Protagonist's Older Sister as a Heroine
  • Brother/Sister Romance
  • Palace
  • Royal Protagonist
Rating 6.3637 Users
Kioku Soushitsu no Okaa-san
Kioku Soushitsu no Okaa-san
29%
Tags
  • Unbeknown Incest
  • No "Keep Voice on Click" Option
  • Widow Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
Rating 6.2942 Users
Sailor Fuku Shinryou Tsumaka ~Naisho no Ecchi na Counseling~
Sailor Fuku Shinryou Tsumaka ~Naisho no Ecchi na Counseling~
29%
Tags
  • Widow Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Mother/Son Romance
  • Netori
Rating 6.9060 Users
Bloods ~Inraku no Ketsuzoku 2~
Bloods ~Inraku no Ketsuzoku 2~
29%
Tags
  • Incest Romance
  • Heroine with Grandchildren
  • Blood-related Incest
  • Family
  • Protagonist's Twin as a Heroine
Rating 7.1090 Users
Shin NOZOKI-ma ~Gesshukuya Kanshi 24 Ji~
Shin NOZOKI-ma ~Gesshukuya Kanshi 24 Ji~
27%
Tags
  • Weak-willed Heroine
  • Uncle/Niece Incest
  • Voyeurism
  • Family
  • Rape with Blackmail
Rating 6.5823 Users
Shimaizuma ~Shimaizuma 3~
Shimaizuma ~Shimaizuma 3~
27%
Tags
  • Asian-style Manor
  • Heroine With Kansai Accent
  • Childishly Violent Heroine
  • Unrequited Love
  • Brief Branches Only
Rating 7.3138 Users
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
Amai Seikatsu -Saikou no Gibo to Saikou no Gishimai-
26%
Tags
  • Non-blood-related Incest
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Brother/Sister Incest
  • Protagonist's Non-blood-related Sister as a Heroine
Rating 7.3130 Users
Classmate no Okaa-san -Immoral Teacher-
Classmate no Okaa-san -Immoral Teacher-
26%
Tags
  • Masturbation with Object
  • Widow Heroine
  • Sexual Fantasizing
  • Heroine with Tights
  • Naked Heroine with Apron
Rating 6.8223 Users
Subete Ubatte Yaru!
Subete Ubatte Yaru!
26%
Tags
  • Non-blood-related Mother/Daughter Incest
  • Non-blood-related Sister/Sister Incest
  • Brother/Sister Romance
  • Blood-related Cousin Incest
  • Cousin Romance
Rating 6.7033 Users
Ane ni mo Makezu ~Onee-chans wa Shigekiteki!~
Ane ni mo Makezu ~Onee-chans wa Shigekiteki!~
25%
Tags
  • Heroine with Bodystocking
  • Oyakodon
  • Heroine with Leotard
  • School Sports Club Member Heroine
  • Protagonist's Blood-related Sister as a Heroine
Rating 6.2631 Users
Bijukubo "Iyarashii Kaa-san de Gomenne..."
Bijukubo "Iyarashii Kaa-san de Gomenne..."
25%
Tags
  • Only Older Heroines
  • Blood-related Aunt/Nephew Incest
  • Incest Romance
  • Obacon
  • Pregnancy Good Ending
Rating 7.49120 Users
Kazoku o Shokusu to Iu koto
Kazoku o Shokusu to Iu koto
25%
Tags
  • Protagonist's Aunt as a Heroine
  • Blood-related Aunt/Nephew Incest
  • Incest
  • Cousin Incest
  • Inbreeding
Rating 5.9623 Users
OH! Stealth Shinshi ~Onmitsu Semen Koukai Nakadashi Gakuen~
OH! Stealth Shinshi ~Onmitsu Semen Koukai Nakadashi Gakuen~
25%
Tags
  • Invisibility
  • Superpowers
  • Discipline Committee Leader Heroine
  • More Than Seven Heroines
  • ESP
Rating 6.8235 Users
Otouto Shibori ~Ane-tachi no Sei Kyouiku~
Otouto Shibori ~Ane-tachi no Sei Kyouiku~
24%
Tags
  • Shotacon
  • Pegging
  • Footjob
  • Shota Protagonist
  • Oneesan-type Heroine
Rating 6.1222 Users
Iyashinbo ~Sekai de Ichiban Suki na Hito~
Iyashinbo ~Sekai de Ichiban Suki na Hito~
24%
Tags
  • Mother/Son Romance
  • Blood-related Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Protagonist's Blood-related Mother as a Heroine
  • Shota Protagonist
Rating 7.7794 Users
Shin Yarasete! Teacher
Shin Yarasete! Teacher
24%
Tags
  • Shimaidon
  • Oyakodon
  • Shota Protagonist
  • Non-twin Heroine Sisters
  • Principal Heroine
Rating 6.7338 Users
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
Miboujin Sanae "Watashi ga Hajimete de Ii no......?"
23%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Heroine with Inverted Nipples
  • Alcoholism
  • Female Protagonist for a Short Time
  • Blood-related Mother/Son Incest
Rating 7.3390 Users

Kazoku Koukan Ane-Haha-Imouto has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Tags (54 total)

NameScoreImportanceWeight
Completely Avoidable Rape3.002.357.06
Grandfather/Granddaughter Incest2.003.286.56
Incest Romance2.752.266.20
Cousin Incest2.832.025.71
Heroine with Children3.001.895.68
Blood-related Mother/Son Incest2.861.845.27
Inbreeding2.501.994.97
Mother Support Character2.751.774.86
Netori3.001.604.80
Unavoidable Netorare2.002.374.75
Enforced Playing Order2.671.724.60
Bonus Side Stories2.801.634.57
Blood-related Brother/Sister Incest3.001.494.48
Heroine with Flat Chest (Non-Loli)2.002.214.41
Protagonist's Blood-related Mother as a Heroine2.331.894.40
Dogs2.002.174.34
Protagonist's Cousin as a Heroine2.251.894.26
Game Over2.751.474.04
Dark Skinned Characters2.002.024.04
Blood-related Incest1.642.433.98
Soapy Massage2.001.853.71
Oneesan-type Heroine2.001.843.68
Nympho Heroine2.001.833.66
Heroine with Zettai Ryouiki2.501.403.51
Oyakodon Ending1.752.003.50
Heroine with Small Breasts (Non-Loli)2.001.713.42
Bad Ending(s)2.801.203.35
Modern Day Japan2.501.333.32
Brocon Heroine2.001.623.23
Adult Heroine2.801.133.17
Protagonist's Aunt as a Heroine1.402.233.12
Pregnancy2.001.543.07
Heroine with Sexual Experience2.501.213.03
Heroine Having Sex with Others2.001.513.03
Group Sex of Several Females1.502.003.01
Impregnation2.171.382.99
Married Heroine2.001.432.86
Protagonist's Blood-related Sister as a Heroine1.441.962.83
Under the Same Roof2.171.282.77
Netorare1.831.502.75
Lesbian Sex1.671.161.93
Cunnilingus2.000.941.87
Multiple Endings2.750.671.84
High School Student Heroine2.000.851.71
Heroine with Big Breasts2.000.841.68
Naked Heroine with Apron1.001.681.68
Defloration2.000.771.54
Protagonist with a Face2.290.631.44
Bestiality0.671.841.23
Imouto-type Heroine0.671.761.18
Nukige1.750.661.15
Group Sex of One Male and Several Females1.000.910.91
Male Protagonist2.600.300.79
ADV2.000.150.29

Traits (140 total)

NameCharactersImportanceWeight
Sex with Others Engages in (Sexual)41.983.19
Group Sex of Several Females Engages in (Sexual)32.273.15
Watch Clothes32.012.78
Incest Engages in (Sexual)51.472.63
Name Tag Clothes22.262.48
Hosome Eyes51.372.45
Braided Odango Hair13.252.25
Skirt Clothes41.342.16
Group Sex of One Male and Several Females Engages in (Sexual)51.162.08
Cousin Role21.872.06
Parted in Middle Hair41.242.00
Lab Coat Clothes21.791.97
Bun Hair21.771.94
Lesbian Sex Engages in (Sexual)31.381.91
Cheerleader Role12.741.90
Trousers Clothes41.181.89
Crew Cut Hair12.711.88
Sex in a Wedding Dress Engages in (Sexual)12.701.87
Group Sex of One Female and Several Males Engages in (Sexual)21.691.86
Father Role21.661.82
Curtained Hair31.301.80
Uncle Role12.581.79
No Bangs Hair21.621.78
Patterned Thigh-high Stockings Clothes12.571.78
Garter Belt Stockings Clothes21.621.78
Nephew Role12.551.77
Terminal Illness Subject of12.551.76
Belt Clothes31.261.75
Adult Breast Sucking Subject of (Sexual)12.521.75
Bestiality Engages in (Sexual)12.471.71
Full Sister Role21.561.71
Curly Hair12.451.70
Red Eyes31.201.67
Aunt Role12.371.64
Sailor School Uniform Clothes21.481.62
Tall (obsolete) Body12.341.62
Nymphomania Subject of12.311.60
Mother Role21.451.60
Famous Role12.231.54
Masturbation Engages in (Sexual)21.401.54
Tank Top Clothes21.391.53
Netori (steals the SO) Engages in12.161.50
Veil Clothes12.151.49
Armband Clothes12.151.49
Red Hair21.321.45
Medical Doctor Role12.091.45
Netorare (they are the stolen SO) Subject of12.091.45
Brother Complex Personality12.061.43
No Name Role12.051.42
Flat Chest Body12.031.41
Butterfly Engages in (Sexual)12.021.40
Wedding Ring Clothes12.001.39
Neighbor Role12.001.38
Wedding Dress Clothes11.991.38
Tall Body11.971.36
Young-adult Body50.751.35
Full Brother Role11.951.35
Twin Braids Hair11.871.30
Standing Sex Engages in (Sexual)11.861.29
Shirt Clothes21.161.27
Blazer Clothes11.831.27
Sitting Sex Engages in (Sexual)11.821.26
Son Role11.811.25
Eye Covering Hair11.801.25
Husband Role11.791.24
Infidelity Engages in11.791.24
Necktie Clothes21.121.23
Big Breasts Body21.101.21
Short Shorts Clothes11.731.20
Glasses Clothes21.091.19
Reserved Personality11.711.18
Naive Personality11.681.17
Collar Clothes11.681.16
Dark Body11.671.16
Spoons Subject of (Sexual)11.671.15
Ribbon Hair Accessory Clothes11.671.15
Thigh-high Stockings Clothes21.051.15
Double Penetration (Group Sex) Subject of (Sexual)11.661.15
Muscular Body11.641.14
Relaxed Personality11.641.13
Pink Eyes11.631.13
Small Breasts Body11.621.12
Slim Body60.571.12
Apron Clothes11.591.10
Kimono Clothes11.571.09
Older Sister Role11.561.08
Sidehair Hair20.981.08
Bracelet Clothes11.551.08
Wife Role11.521.05
Blowjob Subject of (Sexual)11.521.05
Maid's Dress Clothes11.521.05
Orange Hair11.511.05
Makeup Body11.511.05
Necklace Clothes11.501.04
Green Hair11.481.03
Medium Breasts Body11.481.02
Seventh Posture Subject of (Sexual)11.471.02
Blouse Clothes11.461.01
Shoulder-length Hair20.921.01
Teen Body40.621.00
Daughter Role11.441.00
Pantyhose Clothes11.430.99
Brown Eyes20.900.99
Earrings Clothes11.420.98
Black Eyes11.410.98
Jacket Clothes11.410.98
Hair Tie Clothes11.400.97
Tsurime Eyes11.380.96
Brown Hair30.690.95
Tominagi Subject of (Sexual)11.350.94
Wavy Hair11.350.94
Adult Body11.330.92
T-shirt Clothes11.310.91
Blue Eyes20.810.88
Black Hair20.800.88
Ribbon Tie Clothes11.260.87
Classmate Role11.230.86
Short Hair30.610.84
Pale Body90.370.84
Blowjob Engages in (Sexual)20.760.84
Ribbon Hair Tie Clothes11.200.83
Friend Role11.190.83
Standing Sex Subject of (Sexual)11.180.81
Cunnilingus Subject of (Sexual)11.160.80
Twin Tails Hair11.140.79
Ponytail Hair11.100.76
Vaginal Fingering Subject of (Sexual)11.080.75
Boobjob Engages in (Sexual)11.070.74
Sitting Sex Subject of (Sexual)11.060.74
Miniskirt Clothes11.060.74
Violet Eyes11.050.73
Parted to Side Hair11.040.72
Straight Hair10.930.65
Doggy Style Subject of (Sexual)10.920.64
Blond Hair10.890.62
High School Student Role10.860.60
Virgin Sex Engages in (Sexual)10.850.59
Waist Length+ Hair10.820.57
School Uniform Clothes10.770.53
Long Hair10.750.52