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Summary

The protagonist was a shy college student, especially around females. Hoping to overcome this character trait, he accepted a part-time job as a home tutor. His student was a young girl named Yui Katou. She was a little bit dumb and sexy, like a diminutive "gyaru". As he taught her, the protagonist's eyes were drawn to Yui's small and lightly-dressed figure. When she caught him looking she smiled in a strange way. "Sensei, could it be you're a lolicon?" Yui was more sexually experienced than he had guessed. "Fufu, in that case Yui will take sensei's virginity." [From DLsite English]

Otouto-kun Chou Suki 99 Jikan Amaenasai!
Otouto-kun Chou Suki 99 Jikan Amaenasai!
NAN%
Tags
  • Only Blood-related Heroines
  • Nursing Handjob
  • Armpit Sex
  • Single Footjob
  • Heroine with Glasses
Rating 6.6920 Users
Oreimo Plus
Oreimo Plus
NAN%
Tags
  • Protagonist's Younger Sister as a Heroine
  • Protagonist's Full Sister as a Heroine
  • Imouto-type Heroine
  • Blood-related Brother/Sister Incest
  • Heroine with Flat Chest (Non-Loli)
Rating 6.1195 Users
Tropical Vacation
Tropical Vacation
NAN%
Tags
  • Resort
  • Childishly Violent Heroine
  • Otaku Friend
  • Voice Only Parts
  • Martial Artist Heroine
Rating 6.7930 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 6.8960 Users
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
Fudeoroshi Mama ~Afureru Hakudaku & Milk~
NAN%
Tags
  • Obacon
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Only Older Heroines
  • Widow Heroine
Rating 5.7522 Users
Lip Service ~Classmate no JK wa Pinsaro Jou~
Lip Service ~Classmate no JK wa Pinsaro Jou~
NAN%
Tags
  • Prostitution
  • Prostitute Heroine
  • Gokkun
  • Sex Involving Prostitution
  • Blowjob Duck Face
Rating 6.7017 Users
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
Shin Onna Kyoushi Yuuwaku Shinro Shidoushitsu
NAN%
Tags
  • Protagonist with Health Issues
  • School Nurse Support Character
  • School Nurse Heroine
  • Heroine with Sport Bloomers
  • Remote-controlled Vibrator
Rating 6.7027 Users
Tonari no Seki no Gyaru Bitch ~Boku wa Kanojo no Sexfriend!?~
Tonari no Seki no Gyaru Bitch ~Boku wa Kanojo no Sexfriend!?~
NAN%
Tags
  • Skin Color Selection
  • Customization
  • Otaku Protagonist
  • Gyaru Heroine
  • Long Sexual Scenes
Rating 6.4527 Users
Aneimo Neo ~Second Sisters~
Aneimo Neo ~Second Sisters~
NAN%
Tags
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Romancing a Family
  • Oneesan-type Heroine
Rating 7.1137 Users
Onii-chan Nechatta?
Onii-chan Nechatta?
NAN%
Tags
  • Incest Romance
  • Sex Involving Children
  • Protagonist's Full Sister as a Heroine
  • Deredere Heroine
  • Straight Lolicon
Rating 5.7514 Users
Idol☆Gyaku Rape!! ~Tenshi-tachi no Omocha ni Natta Ore~
Idol☆Gyaku Rape!! ~Tenshi-tachi no Omocha ni Natta Ore~
NAN%
Tags
  • Heroine Based on a Fictional Person
  • Unnamed Protagonist
  • Reverse Rape
  • Idol Heroine
  • Japanese Idols
Rating 6.1826 Users
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
NAN%
Tags
  • Oyakodon Ending
  • Heroine with Ahoge
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Incest
Rating 6.9136 Users
Yan Moe Futago Shimai ~Yande Harande Ai Sarete...~
Yan Moe Futago Shimai ~Yande Harande Ai Sarete...~
NAN%
Tags
  • Heroine with Baby Complex
  • Shimaidon with Twins Ending
  • Shimaidon Ending
  • Twin Sisters as Heroines
  • Yandere Heroine
Rating 6.4640 Users
Tsun Mazo Maou to Pure Ero Yuusha ga Arawareta! ~Icha Ero! 3P! Shuraba mo Ari!? Ore no Ue de Kozukuri Last Battle!~
Tsun Mazo Maou to Pure Ero Yuusha ga Arawareta! ~Icha Ero! 3P! Shuraba mo Ari!? Ore no Ue de Kozukuri Last Battle!~
NAN%
Tags
  • Demon Heroine
  • Sword Wielding Heroine
  • Impregnation
  • Internal Exhibition of Sex
  • Tribadism on Penis
Rating 6.2216 Users
Otoko no Ko Gakuen! ~3nin no Otoko no Ko-tachi to no Unmei no Deai, Soshite Boku-tachi wa Koi ni Ochiru!~
Otoko no Ko Gakuen! ~3nin no Otoko no Ko-tachi to no Unmei no Deai, Soshite Boku-tachi wa Koi ni Ochiru!~
NAN%
Tags
  • Only Trap Heroines
  • Trap on Male
  • Trap Heroine
  • Student Hero
  • Male on Male Sex
Rating 6.2521 Users
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
Manamusume no Oshiri wa Papa Sen
Manamusume no Oshiri wa Papa Sen'you ~Tsuma no Mae de, Konna Koto o Suru Nante…~
NAN%
Tags
  • Protagonist's Blood-related Daughter as a Heroine
  • Blood-related Father/Daughter Incest
  • Oyakodon Ending
  • Protagonist's Wife as a Heroine
  • Heroine's Mother as a Heroine
Rating 6.1233 Users
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
NAN%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Only Loli Heroines
  • Student-Teacher Romance
  • Armpit Licking
Rating 6.2225 Users
Onee x Shota
Onee x Shota
NAN%
Tags
  • Shimaidon with Twins Ending
  • Sister/Sister Incest
  • Triple Blowjob
  • Shota Protagonist
  • Twin Sisters as Heroines
Rating 6.3822 Users
Idol Shimai o Ecchi ni Produce!
Idol Shimai o Ecchi ni Produce!
NAN%
Tags
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Foreskin Play
  • Only Avoidable Heroine Having Sex with Others
  • Protagonist's Older Sister as a Heroine
Rating 6.6145 Users
Koi wa Mofumofu! Love Me Teddy
Koi wa Mofumofu! Love Me Teddy
NAN%
Tags
  • Shapeshifting
  • Yandere Heroine
  • Heroine with Tights
  • Otaku Heroine
  • Modern Tsundere Heroine
Rating 6.9624 Users
relations sister×sister.
relations sister×sister.
NAN%
Tags
  • Heroine Sisters
  • Waitress Heroine
  • Protagonist's Non-blood-related Sister as a Heroine
  • Slice of Life
  • Love Triangle
Rating 6.4633 Users
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
Musuko ga Osewa ni Narimashite ~Miboujin Kanrinin-san to Kaa-san to~
NAN%
Tags
  • Mother/Son Incest
  • Only Adult Heroines
  • Masochist Heroine
  • Clothed Male Naked Female
  • Pregnancy Ending
Rating 6.3334 Users
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
NAN%
Tags
  • Only Younger Heroines
  • Only Blood-related Heroines
  • Discreet Phone Sex
  • Only Protagonist's Sisters as Heroine(s)
  • Single Buttjob
Rating 6.6334 Users
Mai Yome ~My Yome~
Mai Yome ~My Yome~
27%
Tags
  • Sex Involving Children
  • Only Younger Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Only Loli Heroines
  • Deredere Heroine
Rating 5.6020 Users
Tsuma no Kyonyuu Ane to Tsundere Imouto kara no Inmitsu Yuuwaku ~Barete wa Ikenai Kateinai Furin~
Tsuma no Kyonyuu Ane to Tsundere Imouto kara no Inmitsu Yuuwaku ~Barete wa Ikenai Kateinai Furin~
26%
Tags
  • In-law Incest
  • Protagonist's Sister-in-Law as a Heroine
  • School Nurse Heroine
  • Completion Status Indicator
  • Masturbation in front of an Audience
Rating 6.6415 Users
Tsun Mazo Maou to Pure Ero Yuusha ga Arawareta! ~Icha Ero! 3P! Shuraba mo Ari!? Ore no Ue de Kozukuri Last Battle!~
Tsun Mazo Maou to Pure Ero Yuusha ga Arawareta! ~Icha Ero! 3P! Shuraba mo Ari!? Ore no Ue de Kozukuri Last Battle!~
24%
Tags
  • Demon Heroine
  • Sword Wielding Heroine
  • Impregnation
  • Internal Exhibition of Sex
  • Tribadism on Penis
Rating 6.2216 Users
Yan Moe Futago Shimai ~Yande Harande Ai Sarete...~
Yan Moe Futago Shimai ~Yande Harande Ai Sarete...~
24%
Tags
  • Heroine with Baby Complex
  • Shimaidon with Twins Ending
  • Shimaidon Ending
  • Twin Sisters as Heroines
  • Yandere Heroine
Rating 6.4640 Users
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
Trouble Home! ~Giri no Haha to Imouto wa Koigataki~
22%
Tags
  • Oyakodon Ending
  • Heroine with Ahoge
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Non-blood-related Incest
Rating 6.9136 Users
Onii-chan Nechatta?
Onii-chan Nechatta?
22%
Tags
  • Incest Romance
  • Sex Involving Children
  • Protagonist's Full Sister as a Heroine
  • Deredere Heroine
  • Straight Lolicon
Rating 5.7514 Users
Idol☆Gyaku Rape!! ~Tenshi-tachi no Omocha ni Natta Ore~
Idol☆Gyaku Rape!! ~Tenshi-tachi no Omocha ni Natta Ore~
22%
Tags
  • Heroine Based on a Fictional Person
  • Unnamed Protagonist
  • Reverse Rape
  • Idol Heroine
  • Japanese Idols
Rating 6.1826 Users
Tonari no Seki no Gyaru Bitch ~Boku wa Kanojo no Sexfriend!?~
Tonari no Seki no Gyaru Bitch ~Boku wa Kanojo no Sexfriend!?~
22%
Tags
  • Skin Color Selection
  • Customization
  • Otaku Protagonist
  • Gyaru Heroine
  • Long Sexual Scenes
Rating 6.4527 Users
Aneimo Neo ~Second Sisters~
Aneimo Neo ~Second Sisters~
22%
Tags
  • Protagonist's Aunt as a Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Romancing a Family
  • Oneesan-type Heroine
Rating 7.1137 Users
Nuppunupu Oyako Mix!! ~Double Oyako to Lovelove Pension Seikatsu~
Nuppunupu Oyako Mix!! ~Double Oyako to Lovelove Pension Seikatsu~
21%
Tags
  • Single Hole Multiple Objects Insertion (obsolete)
  • Sex Involving Food
  • Vaginal + Anal Object Insertion
  • Otaku Protagonist
  • Heroine with Tan Lines
Rating 7.2037 Users
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
Lovecha ~Tsumasakidachi de, Hitomi o Tojite~
20%
Tags
  • Elementary School
  • Elementary School Student Heroine
  • Only Loli Heroines
  • Student-Teacher Romance
  • Armpit Licking
Rating 6.2225 Users
Idol Shimai o Ecchi ni Produce!
Idol Shimai o Ecchi ni Produce!
20%
Tags
  • Only Blood-related Heroines
  • Only Protagonist's Sisters as Heroine(s)
  • Foreskin Play
  • Only Avoidable Heroine Having Sex with Others
  • Protagonist's Older Sister as a Heroine
Rating 6.6145 Users
relations sister×sister.
relations sister×sister.
20%
Tags
  • Heroine Sisters
  • Waitress Heroine
  • Protagonist's Non-blood-related Sister as a Heroine
  • Slice of Life
  • Love Triangle
Rating 6.4633 Users
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
Ore no Imouto wa Seijun Bitch ~Oya ni wa Himitsu no Hamehame Seikatsu~
19%
Tags
  • Only Younger Heroines
  • Only Blood-related Heroines
  • Discreet Phone Sex
  • Only Protagonist's Sisters as Heroine(s)
  • Single Buttjob
Rating 6.6334 Users
Binyuu Kiss Nee Rimi "Otouto no Kuse ni Sakarau Nante... Namaiki yo!"
Binyuu Kiss Nee Rimi "Otouto no Kuse ni Sakarau Nante... Namaiki yo!"
19%
Tags
  • Oneesan-type Heroine
  • Blood-related Aunt/Nephew Incest
  • Incest Romance
  • Kissing Scene
  • Armpit Sex
Rating 7.3023 Users
Kuudere Nee-chan Kansatsu Nikki ~Himitsu no Onani, Tousatsu Shichaimashita~
Kuudere Nee-chan Kansatsu Nikki ~Himitsu no Onani, Tousatsu Shichaimashita~
18%
Tags
  • Protagonist's Sister as a Heroine
  • Brother/Sister Incest
  • Kuudere Heroine
  • Brocon Heroine
  • Masturbation with Object
Rating 6.8120 Users
Jukuren Ganbou ~Himeta Omoi to Midara na Ai no Katachi~
Jukuren Ganbou ~Himeta Omoi to Midara na Ai no Katachi~
18%
Tags
  • Businesswoman Heroine
  • Multiple Credit Rolls
  • Twin Footjob
  • Pure Love Story
  • Sex at Work
Rating 6.9224 Users
Saimin Choukyou Shimai
Saimin Choukyou Shimai
18%
Tags
  • Heroine Sisters
  • Erotic Mind Control
  • Mind Control
  • Sex with Others
  • Protagonist's Older Sister as a Heroine
Rating 5.8816 Users
Boku Kano 3 ~ Otoko no Ko o Suki ni Naru Jun
Boku Kano 3 ~ Otoko no Ko o Suki ni Naru Jun'ai Triangle + 1
18%
Tags
  • Only Uke Heroes
  • Shotacon Protagonist
  • Male on Trap
  • Seme Protagonist
  • Brother/Brother Incest
Rating 6.3024 Users
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
Nise Bitch ~Riajuu Butte mo Pure de Ichizu na Osananajimi ni H na Kozukuri Lesson~
18%
Tags
  • Cosplay
  • Footjob
  • Nympho Heroine
  • Spoons
  • Impregnation
Rating 6.3330 Users
Yoyogi Hitozuma Senmon Gakuin ~Nyuuzuma-tachi no Ennui~
Yoyogi Hitozuma Senmon Gakuin ~Nyuuzuma-tachi no Ennui~
18%
Tags
  • Announcer Heroine
  • Protagonist's Sister-in-Law as a Heroine
  • Nurse Heroine
  • Family Life Comedy
  • Netori
Rating 7.1225 Users
Porno Sakka Mayuka to, Injuku Miboujin to Katabutsu Henshuusha to Ubu Gishi
Porno Sakka Mayuka to, Injuku Miboujin to Katabutsu Henshuusha to Ubu Gishi
17%
Tags
  • Indecisive Protagonist
  • Writer Heroine
  • Unlockable Sexual Content
  • Discreet Masturbation
  • Threesome Ending
Rating 6.9051 Users
Mini Pai Claimer ~Monku o Iitai no ni Oppai ga Kanjichau~
Mini Pai Claimer ~Monku o Iitai no ni Oppai ga Kanjichau~
17%
Tags
  • Remote-controlled Vibrator
  • Co-worker Heroine
  • Mirror Sex
  • Twin Handjob
  • Map Movement
Rating 6.7331 Users
Ikinari Dousei Seikatsu?!
Ikinari Dousei Seikatsu?!
17%
Tags
  • Incest
  • Protagonist's Blood-related Sister as a Heroine
  • Under the Same Roof
  • Heroine with Small Breasts (Non-Loli)
  • Summer
Rating 6.4314 Users

Koakuma Katekyo has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
A novel needs atleast 20 owners before it's similarity is calculated.

Tags (14 total)

NameScoreImportanceWeight
Only Non-Virgin Heroines3.001.775.32
Promiscuous Heroine3.001.755.26
University Student Protagonist3.001.524.55
Straight Lolicon3.001.504.51
Heroine with Sexual Experience3.001.213.63
Only Loli Heroines2.001.783.56
Legwear Footjob2.001.623.25
Single Footjob2.001.372.74
Kinetic Novel2.001.072.13
Only a Single Heroine2.001.012.03
Sexual Content2.500.631.58
Loli Heroine1.001.191.19
Male Protagonist3.000.300.90
ADV2.000.140.29

Traits (19 total)

NameCharactersImportanceWeight
Promiscuous Personality12.191.52
Small Breast Sizes Body12.011.39
Footjob Engages in (Sexual)11.721.19
Ribbon Hair Accessory Clothes11.661.15
Clothing with Ribbons Clothes11.581.10
Bracelet Clothes11.561.08
Not a Virgin Role11.410.98
Tank Top Clothes11.410.98
Pleated Skirt Clothes11.400.97
Kid Body11.370.95
Pink Hair11.330.92
Tareme Eyes11.110.77
Parted to Side Hair11.050.73
Violet Eyes11.050.73
Thigh-high Stockings Clothes11.040.72
Sidehair Hair10.980.68
Long Hair10.750.52
Slim Body10.580.40
Pale Body10.370.25