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Summary

The protagonist, Koshino Hiroki, lost his father 15 years ago. Since then, he lived alone together with his mother Koshino Kazusa. Knowing first hand how his mother worked hard to raise him by herself, he works hard as well to repay her and make her life easier. One day, while Kazusa and Hiroki are drinking merrily, their sexual tension escalated, which resulted to Kazusa giving her son a blowjob. After the act, they mutually decided to forget about it. Unknown to them, a man secretly filmed their affair. That man blackmailed Kazusa into sex, and then sent the videos to Hiroki. The videos Hiroki received contained his sexual affair with his mother, as well as a film of her mother being blackmailed into sex. In the video, the man then proposed a game to Hiroki. If Hiroki can find all 9 porn DVDs of her mother, then the man would no longer bother the two of them. The man warned him not to consult anyone about it, including his mother. With the desire to protect his mother, Hiroki decided that he will...

Okaa-san to Koubi ~Tojikomerarete Futarikkiri Sekai ni Nattara Hoka ni Nani Suru?~
Okaa-san to Koubi ~Tojikomerarete Futarikkiri Sekai ni Nattara Hoka ni Nani Suru?~
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Incest
  • Only Blood-related Heroines
  • Only Older Heroines
Rating 6.3021 Users
Kiss + 100 Kiss Tokku, Shidou Seri
Kiss + 100 Kiss Tokku, Shidou Seri
NAN%
Tags
  • Consensual Group Sex of One Female and Several Males
  • Completely Avoidable Netorare
  • Fictional Modern Day Japanese Countryside
  • Netorare Type A
  • Twin Handjob
Rating 6.5027 Users
Onee-chan Eroero Chuuihou ~Aieki no Daikouzui~
Onee-chan Eroero Chuuihou ~Aieki no Daikouzui~
NAN%
Tags
  • Oneesan-type Heroine
  • Twin Boobjob
  • Harem Ending
  • Brocon Heroine
  • Blood-related Brother/Sister Incest
Rating 6.5522 Users
Dohamari Harem
Dohamari Harem
NAN%
Tags
  • Triple Handjob
  • Triple Footjob
  • Mother/Son Incest
  • Blood-related Mother/Daughter Incest
  • Pegging
Rating 6.5838 Users
Okaa-san no Ama Ama Time ~Musuko no Yokubou~
Okaa-san no Ama Ama Time ~Musuko no Yokubou~
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Interactive Touching Game
  • Chubby Heroine
  • No Character Sprites
Rating 6.0922 Users
Nympho Waifu++
Nympho Waifu++
NAN%
Tags
  • Cheat Codes
  • Customizable Character Relations
  • Ushimimi Heroine
  • Sprite Filter
  • Author Commentary Mode
Rating 5.5044 Users
Mama Mama Mama 2
Mama Mama Mama 2
NAN%
Tags
  • Mother/Son Romance
  • Adult Breast Feeding
  • Gaping
  • Oyakodon
  • Discreet Masturbation
Rating 6.1634 Users
Boku no Maman Sagashi ~Mama o Tazunetara... 8nin no Kyonyuu Tsuma Deshita~
Boku no Maman Sagashi ~Mama o Tazunetara... 8nin no Kyonyuu Tsuma Deshita~
NAN%
Tags
  • More Than Seven Heroines
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Consensual Group Sex of One Female and Several Males
  • Prostitute Heroine
Rating 6.4931 Users
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
NAN%
Tags
  • American Heroine
  • Voyeurism
  • Blood-related Aunt/Nephew Incest
  • Fictional Modern Day Japanese Countryside
  • Protagonist's Aunt as a Heroine
Rating 5.8521 Users
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
NAN%
Tags
  • Non-blood-related Mother/Son Incest
  • Adult Breast Feeding
  • Only Protagonist's Relatives as Heroine(s)
  • Netori
  • University Student Protagonist
Rating 6.4520 Users
Niizuma Megu ga Ochiru Toki
Niizuma Megu ga Ochiru Toki
NAN%
Tags
  • Netorare Type B
  • Early Sexual Content
  • Infidelity
  • Butterfly
  • Map Movement
Rating 6.6920 Users
Ochiteiku Wakazuma Maiko
Ochiteiku Wakazuma Maiko
NAN%
Tags
  • Sexual Slavery (Non-consensual)
  • Rape with Blackmail
  • Chikan
  • Protagonist in Relationship
  • NVL
Rating 6.4523 Users
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
NAN%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Non-blood-related Mother as a Heroine
  • Oyakodon Ending
  • Single Handjob
  • Hairjob
Rating 5.9320 Users
Kanjuku Rouge Drip
Kanjuku Rouge Drip
NAN%
Tags
  • Obacon
  • Only Older Heroines
  • Glory Hole Sex
  • Sex Involving Prostitution
  • Heroine with Children
Rating 6.8865 Users
Mama to no Ikisugi Ama Ama Seikatsu ~Ippai Kimochi Ii Koto Oshiete A-Ge-Ru~
Mama to no Ikisugi Ama Ama Seikatsu ~Ippai Kimochi Ii Koto Oshiete A-Ge-Ru~
NAN%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Inbreeding
  • Widow Heroine
  • Only Non-Virgin Heroines
Rating 6.2430 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
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
Chikan Densha Kyonyuu Otori Sousakan ~Nerawareta Ureta Nikutai~
NAN%
Tags
  • Molestation on Public Transport
  • Unavoidable Protagonist Rape
  • Chikan
  • Sexual Slavery (Choukyou Variation)
  • Sex in a Vehicle
Rating 6.2723 Users
Immoral Joubo Hazard
Immoral Joubo Hazard
NAN%
Tags
  • Heroine with Old-style Bloomers
  • Sex with Sleepers
  • Blood-related Mother/Son Incest
  • Consensual Phone Sex
  • Incest
Rating 6.1322 Users
Fuurai Senki Shinmu
Fuurai Senki Shinmu
NAN%
Tags
  • Completely Avoidable Heroine Rape
  • Avoidable Netorare (obsolete)
  • Netorare Type C
  • Energy Transfer via Sex
  • Single Hole Double Penetration (obsolete)
Rating 6.5634 Users
Zoku Oku-sama wa Onee-chan!?
Zoku Oku-sama wa Onee-chan!?
NAN%
Tags
  • In-law Incest
  • Sister/Sister Incest
  • Non-blood-related Mother/Son Incest
  • Shimaidon Ending
  • Shotacon
Rating 6.6725 Users
Maid-san no Iru Kurashi S
Maid-san no Iru Kurashi S
NAN%
Tags
  • European Heroine
  • Slow-burn Romance
  • Salaryman Protagonist
  • Maid Heroine
  • Under the Same Roof
Rating 7.1825 Users
Fukushuu no Honoo wa Ingoku no Yami ni Moe -Gokuaku Onna ni Net Koukai de Seisai o-
Fukushuu no Honoo wa Ingoku no Yami ni Moe -Gokuaku Onna ni Net Koukai de Seisai o-
NAN%
Tags
  • Sexual Slavery (Choukyou Variation)
  • Revenge
  • Clothing Damage
  • Bondage
  • Vaginal Multiple Objects Insertion
Rating 6.0822 Users
Toriko no Shimai ~Midara ni Moteasobareru Unmei no Mayoigo~
Toriko no Shimai ~Midara ni Moteasobareru Unmei no Mayoigo~
NAN%
Tags
  • Rape Victim Heroine
  • Non-twin Heroine Sisters
  • Gang Bang
  • Bleep Censor
  • Duct Tape Bondage
Rating 7.0654 Users
Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
NAN%
Tags
  • Actress Heroine
  • Production of Pornography (Professional)
  • Anal Object Insertion
  • Anal Plug Tail
  • Double Penetration (Group Sex)
Rating 7.5250 Users
Omae no Mama o Share Shiyou ze ~Musuko e no Ijimekko-tachi ni Otosareru Bibo~
Omae no Mama o Share Shiyou ze ~Musuko e no Ijimekko-tachi ni Otosareru Bibo~
26%
Tags
  • Netorase
  • Mother/Son Incest
  • Fisting
  • Blood-related Incest
  • Pregnancy Bad Ending
Rating 6.3628 Users
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
Kaa-san no Otoko ~Yajuu no You na Otoko ni Mesu no Yorokobi o Oboesaserareru Saiai no Haha~
21%
Tags
  • Netorare Type B
  • Protagonist's Blood-related Mother as a Heroine
  • Only Protagonist's Relatives as Heroine(s)
  • Widow Heroine
  • Corruption of Characters
Rating 6.7983 Users
Kanjuku Rouge Drip
Kanjuku Rouge Drip
21%
Tags
  • Obacon
  • Only Older Heroines
  • Glory Hole Sex
  • Sex Involving Prostitution
  • Heroine with Children
Rating 6.8865 Users
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
Ane Imo Mama no Shasei Kanri ~Tsuide ni Kodomo ga Dekichatte mo Ii yo ne~
18%
Tags
  • Only Protagonist's Relatives as Heroine(s)
  • Protagonist's Non-blood-related Mother as a Heroine
  • Oyakodon Ending
  • Single Handjob
  • Hairjob
Rating 5.9320 Users
Ochiteiku Wakazuma Maiko
Ochiteiku Wakazuma Maiko
17%
Tags
  • Sexual Slavery (Non-consensual)
  • Rape with Blackmail
  • Chikan
  • Protagonist in Relationship
  • NVL
Rating 6.4523 Users
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
Gibo no Milk wa Mitsu no Aji ~Ippai Nonde, Amaete ne~
16%
Tags
  • Non-blood-related Mother/Son Incest
  • Adult Breast Feeding
  • Only Protagonist's Relatives as Heroine(s)
  • Netori
  • University Student Protagonist
Rating 6.4520 Users
Niizuma Megu ga Ochiru Toki
Niizuma Megu ga Ochiru Toki
16%
Tags
  • Netorare Type B
  • Early Sexual Content
  • Infidelity
  • Butterfly
  • Map Movement
Rating 6.6920 Users
Boku no Maman Sagashi ~Mama o Tazunetara... 8nin no Kyonyuu Tsuma Deshita~
Boku no Maman Sagashi ~Mama o Tazunetara... 8nin no Kyonyuu Tsuma Deshita~
15%
Tags
  • More Than Seven Heroines
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Consensual Group Sex of One Female and Several Males
  • Prostitute Heroine
Rating 6.4931 Users
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
Nozoki Seikatsu ~Bijin Oyako no Ana to Ana!~
14%
Tags
  • American Heroine
  • Voyeurism
  • Blood-related Aunt/Nephew Incest
  • Fictional Modern Day Japanese Countryside
  • Protagonist's Aunt as a Heroine
Rating 5.8521 Users
Shojo Mama
Shojo Mama
13%
Tags
  • Non-blood-related Mother/Son Incest
  • Futanari on Male
  • Clumsy Heroine
  • Domicile
  • Cross-dressing
Rating 6.2420 Users
Immoral Joubo Hazard
Immoral Joubo Hazard
13%
Tags
  • Heroine with Old-style Bloomers
  • Sex with Sleepers
  • Blood-related Mother/Son Incest
  • Consensual Phone Sex
  • Incest
Rating 6.1322 Users
Zoku Oku-sama wa Onee-chan!?
Zoku Oku-sama wa Onee-chan!?
13%
Tags
  • In-law Incest
  • Sister/Sister Incest
  • Non-blood-related Mother/Son Incest
  • Shimaidon Ending
  • Shotacon
Rating 6.6725 Users
Fukushuu no Honoo wa Ingoku no Yami ni Moe -Gokuaku Onna ni Net Koukai de Seisai o-
Fukushuu no Honoo wa Ingoku no Yami ni Moe -Gokuaku Onna ni Net Koukai de Seisai o-
12%
Tags
  • Sexual Slavery (Choukyou Variation)
  • Revenge
  • Clothing Damage
  • Bondage
  • Vaginal Multiple Objects Insertion
Rating 6.0822 Users
Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
Toriko no Tsubasa ~Butaiura de Midara ni Odoru Marionnette~
12%
Tags
  • Actress Heroine
  • Production of Pornography (Professional)
  • Anal Object Insertion
  • Anal Plug Tail
  • Double Penetration (Group Sex)
Rating 7.5250 Users
Tsuma to Musuko ni Barete wa Ikenai Haitoku no Binetsu ~Ayamachi no Mitsuai 2~
Tsuma to Musuko ni Barete wa Ikenai Haitoku no Binetsu ~Ayamachi no Mitsuai 2~
11%
Tags
  • In-law Incest
  • Non-blood-related Father/Daughter Incest
  • Netori
  • Protagonist with Children
  • Onsen
Rating 6.3521 Users
Kashidashi Tsuma, Marina no "Netorase" Houkoku Gaiden 1 -Joshikousei, Marina no Seikan Kaihatsu-
Kashidashi Tsuma, Marina no "Netorase" Houkoku Gaiden 1 -Joshikousei, Marina no Seikan Kaihatsu-
11%
Tags
  • Condoms
  • Only a Single Hero
  • Kissing Scene
  • Sitting Sex
  • Only a Single Heroine
Rating 6.9154 Users
Miko Mama
Miko Mama
11%
Tags
  • Blood-related Incest
  • Blood-related Aunt/Nephew Incest
  • Protagonist's Aunt as a Heroine
  • Promiscuous Heroine
  • Futanari Support Character
Rating 6.1124 Users
The Mensetsu ~Naitei Hoshikerya Wakaru Daro?~
The Mensetsu ~Naitei Hoshikerya Wakaru Daro?~
11%
Tags
  • Casting Couch
  • Rape by Deception
  • Manager Protagonist
  • Office
  • Ending Scene Recollection
Rating 5.4071 Users
Boku no Inai Jikan ni Maotoko-tachi ni Tanetsukesareru Haha
Boku no Inai Jikan ni Maotoko-tachi ni Tanetsukesareru Haha
11%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Interracial Sex
  • Netorare
  • Heroine in Relationship with Other(s)
  • Dark Skinned Characters
Rating 6.4934 Users
Boku no Seiso na Mama ga, Konna ni Inran na Wake ga Nai! ~Bitch Mama to no Futekisetsu na Kankei~
Boku no Seiso na Mama ga, Konna ni Inran na Wake ga Nai! ~Bitch Mama to no Futekisetsu na Kankei~
11%
Tags
  • Half-orphan Protagonist
  • Blood-related Mother/Son Incest
  • Protagonist's Blood-related Mother as a Heroine
  • Only Blood-related Heroines
  • Only Older Heroines
Rating 5.4033 Users
Kashidashi Tsuma, Marina no "Netorase" Houkoku Gaiden 2 -OL Marina no Doutei Choukyou-
Kashidashi Tsuma, Marina no "Netorase" Houkoku Gaiden 2 -OL Marina no Doutei Choukyou-
11%
Tags
  • Flashback
  • Office Lady Heroine
  • Condoms
  • Production of Pornography (Amateur)
  • Kinetic Novel
Rating 7.1349 Users
Ai Suru Tsuma no Ana wa Tanin no Ana Datta... ~Bishiri o Sashidashi, Aniki no Nikubou o Onedari Suru Midarazuma~
Ai Suru Tsuma no Ana wa Tanin no Ana Datta... ~Bishiri o Sashidashi, Aniki no Nikubou o Onedari Suru Midarazuma~
11%
Tags
  • In-law Incest
  • Netorare Type A
  • Drunk Sex
  • Naked Heroine with Apron
  • Soapy Massage
Rating 6.2420 Users
Otome Switch ~Kare ga Motteru Kanojo no Remocon~
Otome Switch ~Kare ga Motteru Kanojo no Remocon~
11%
Tags
  • Class President Heroine
  • Remote-controlled Vibrator
  • Protagonist's Twin as a Heroine
  • Highly Animated Sprites
  • Heroine with Swimsuits
Rating 7.0968 Users
Amaemu♪ ~Okaa-san no Kazoku Keikaku~
Amaemu♪ ~Okaa-san no Kazoku Keikaku~
10%
Tags
  • Smoker Heroine
  • Non-blood-related Mother/Son Incest
  • Protagonist's Non-blood-related Mother as a Heroine
  • Oyakodon Ending
  • Mahou Shoujo Heroine
Rating 5.9836 Users

Hahadori ~Ochiteiku Haha no Eizou Kiroku~ 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 (32 total)

NameScoreImportanceWeight
Only Bad Endings3.001.955.84
Blackmail3.001.765.28
Pornography2.002.625.23
Protagonist's Blood-related Mother as a Heroine2.501.904.76
Game Over3.001.494.46
Hetare Protagonist2.002.174.34
Only Blood-related Heroines2.002.104.21
Only Older Heroines2.002.104.19
Netorare Type B2.002.064.12
Wax Play2.001.973.95
Widow Heroine2.001.973.95
Sex with Sleepers2.001.913.82
Only Non-Virgin Heroines2.001.793.58
Rape with Blackmail2.001.783.55
Naked Heroine with Apron2.001.663.33
Only Adult Heroines2.001.492.98
Blood-related Mother/Son Incest1.501.852.77
Few Choices2.001.342.67
Reverse Cowgirl2.001.332.66
Female Ejaculation2.001.272.55
Vibrators2.001.152.30
Sex in Public Places2.001.092.17
Standing Sex2.001.062.11
Only a Single Heroine2.001.022.04
Cowgirl2.000.841.68
Doggy Style2.000.801.61
Multiple Endings2.000.671.34
Nukige2.000.651.30
Group Sex of One Female and Several Males1.001.081.08
Male Protagonist2.000.300.61
ADV2.000.150.29
2.000.000.00

Traits (77 total)

NameCharactersImportanceWeight
Non-consensual Porn Acting Subject of (Sexual)22.382.61
Non-consensual Porn Distribution Subject of (Sexual)13.662.54
Mother Complex Personality13.112.16
Duct Tape Bondage Subject of (Sexual)12.902.01
Civil Servant Role12.882.00
Hetare Personality12.781.93
Rape with Blackmail Subject of12.581.79
Sleep Sex Subject of (Sexual)12.491.73
Rape Attempt Engages in (Sexual)12.481.72
Spreader Bar Subject of (Sexual)12.471.71
Casual Sex Engages in (Sexual)12.451.70
Discreet Phone Sex Engages in (Sexual)12.441.69
Drunk Sex Engages in (Sexual)12.411.67
Off Screen Sex (obsolete) Engages in (Sexual)12.381.65
Wax Play Subject of (Sexual)12.351.63
Incest Engages in (Sexual)21.471.61
Vaginal + Anal Object Insertion Subject of (Sexual)12.261.57
Netori (their SO is stolen) Subject of12.261.57
Widow Role12.201.53
Fainting Subject of12.151.49
Blackmail Subject of12.121.47
Netorare (they are the stolen SO) Subject of12.121.47
Half-orphan Role12.111.46
Consensual Porn Acting Engages in (Sexual)12.101.45
Mindbreak Subject of (Sexual)12.031.41
Anal Beads Subject of (Sexual)12.011.39
Wedding Ring Clothes12.001.39
Sexual Slavery (Choukyou Variation) Subject of (Sexual)11.991.38
Sex with Others Engages in (Sexual)11.991.38
Sexual Corruption Subject of11.971.36
Mutual Masturbation Engages in (Sexual)11.941.34
Masturbation in front of an Audience Engages in (Sexual)11.901.32
Part-time Worker Role11.901.32
Naked Apron Clothes11.871.30
Sexual Blindfold Subject of (Sexual)11.851.28
Pink Rotor Subject of (Sexual)11.831.27
Bob Cut Hair11.821.26
Son Role11.821.26
Deepthroat Engages in (Sexual)11.801.25
Group Sex of One Female and Several Males Engages in (Sexual)11.701.18
Rope Bondage Subject of (Sexual)11.671.16
Double Penetration (Group Sex) Subject of (Sexual)11.651.14
Reverse Cowgirl Subject of (Sexual)11.631.13
Drinking Engages in11.621.12
Lactation Engages in11.591.10
Apron Clothes11.591.10
Ore Personality11.581.09
Bondage Sex Subject of (Sexual)11.571.09
Rape Subject of (Sexual)11.561.08
Big Breast Sizes Body11.541.07
Hard Worker Personality11.541.07
Blowjob Subject of (Sexual)11.521.06
Mother Role11.461.01
Not a Virgin Role11.420.99
Cooking Engages in11.420.98
Masturbation Engages in (Sexual)11.390.96
Bathroom Sex Engages in (Sexual)11.390.96
Female Ejaculation Engages in (Sexual)11.370.95
Adult Body11.350.93
Skirt Clothes11.330.93
Watashi Personality11.260.87
Parted in Middle Hair11.250.87
Handjob Engages in (Sexual)11.160.80
Shirt Clothes11.160.80
Quickie Fix Subject of (Sexual)11.080.75
Vaginal Fingering Subject of (Sexual)11.080.75
Boobjob Engages in (Sexual)11.070.74
Amber Eyes11.030.71
Kind Personality11.030.71
Straight Hair10.950.66
Doggy Style Subject of (Sexual)10.930.64
Black Hair10.810.56
Young-adult Body10.760.53
Blowjob Engages in (Sexual)10.760.53
Short Hair10.610.42
Slim Body10.580.40
Pale Body10.370.26