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Summary

The day after the protagonist was bullied by a dominant classmate, he finds that suddenly his testicles and penis have grown to enormous proportions! He rushes to the the infirmary, where he is told they will need a sample of semen. However, he ends up ejaculating an unbelievable amount. When the nurse sees this, she tells him: "Why don't you take revenge on the girls who bullied you with your new toy?" [From DLsite English]

Hitozuma Keiji wa Moto Mahou Shoujo ~2-juu Spy no Ore ga Sennou Saimin o Kurikaeshi Netori Otosu~
Hitozuma Keiji wa Moto Mahou Shoujo ~2-juu Spy no Ore ga Sennou Saimin o Kurikaeshi Netori Otosu~
NAN%
Tags
  • Netori
  • Falling to Evil (sexual)
  • Kneepit Sex
  • Armpit Sex
  • Stockings
Rating 6.5739 Users
Tanetsuke Kyoushitsu ~Ima kara Minna ni Sensei no Tokunou Seishi de Harande Moraimasu~
Tanetsuke Kyoushitsu ~Ima kara Minna ni Sensei no Tokunou Seishi de Harande Moraimasu~
NAN%
Tags
  • Sex Involving Smegma
  • Glory Hole Sex
  • Religious Heroine
  • Nun Heroine
  • Impregnation
Rating 6.3824 Users
Zanjibaru
Zanjibaru
NAN%
Tags
  • Monster Hunter Heroine
  • Maid Protagonist
  • Fictional Modern Day Japanese Countryside
  • Sex With Monsters
  • Sword Wielding Protagonist
Rating 7.4221 Users
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
Binyuu Inmai Haruka "Watashi ni Iyarashii Cosplay Saseru nante... Kono Hentai!"
NAN%
Tags
  • Discipline Committee Leader Protagonist
  • Twin Bellyjob
  • Protagonist's Blood-related Sister as a Heroine
  • Heroine with Spats
  • Bunnygirl Cosplay
Rating 7.0626 Users
Uchuu Kaizoku Sara
Uchuu Kaizoku Sara
NAN%
Tags
  • Pirate Protagonist
  • Sword Combat
  • Mercenary Protagonist
  • Sword Wielding Heroine
  • Futanari on Futanari
Rating 6.49266 Users
Oshioki Sweetie ~Koi Suru Onee-san wa Urahara Desu~
Oshioki Sweetie ~Koi Suru Onee-san wa Urahara Desu~
NAN%
Tags
  • Sexual Cosplay
  • Straight Shotacon
  • Early Branching Plot
  • Western-style Manor
  • Heroine with Chinese Dress
Rating 6.9542 Users
Discipline LS
Discipline LS
NAN%
Tags
  • Early Sexual Content
  • Nympho Heroine
  • Only Non-Virgin Heroines
  • Facesitting
  • School
Rating 6.1952 Users
Seiso na JK ni Biyaku Mamire no Chi*po o Soku Hame Shitara Ore no Seieki Benki ni Natta!
Seiso na JK ni Biyaku Mamire no Chi*po o Soku Hame Shitara Ore no Seieki Benki ni Natta!
NAN%
Tags
  • Sex Involving Drugs
  • Excessive Semen
  • Protagonist's Cousin as a Heroine
  • Tribadism on Penis
  • Unavoidable Heroine Rape
Rating 6.3521 Users
Sengoku Makan
Sengoku Makan
NAN%
Tags
  • Sengoku Period
  • Onna Bugeisha Heroine
  • Protagonist Based on Real Person
  • Heroine Based on Real Person
  • Strong Female Protagonist
Rating 6.0229 Users
Himekishi Lilia ~Mashoku no Oujou ni Otsu~
Himekishi Lilia ~Mashoku no Oujou ni Otsu~
NAN%
Tags
  • Madam Heroine
  • Sexual Slavery (Non-consensual)
  • Medieval Fantasy
  • Heroine with Armor
  • High Amounts of Rape
Rating 6.4965 Users
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
NAN%
Tags
  • Heroine with Bodystocking
  • Heroine with Slave Tattoo (BDSM)
  • Gaping
  • Anthology
  • Internal Exhibition of Sex
Rating 6.2542 Users
Majo-gari no Kishi ~Jinkaku Ten
Majo-gari no Kishi ~Jinkaku Ten'i no Ori~
NAN%
Tags
  • Medieval Fantasy
  • Brother/Sister Incest
  • Body Swapping
  • Gaping
  • Incest
Rating 5.9823 Users
Mahou Shoujo Subaru
Mahou Shoujo Subaru
NAN%
Tags
  • Auto-Boobjob
  • Mahou Shoujo Heroine
  • Heroine with Leotard
  • Consensual Sex Involving Slime Monsters
  • Futanari on Futanari
Rating 6.1522 Users
Lilith-Izm07 ~Ore no Pet Hen~
Lilith-Izm07 ~Ore no Pet Hen~
NAN%
Tags
  • Yuki-onna Heroine
  • All the Way Through
  • BDSM
  • Anthology
  • Mahou Shoujo Heroine
Rating 6.3324 Users
Hametsu Yotei no Akushinkan, Akuyaku Reijou to Onna Shujinkou o Niku Benki ni Shite Subete o Te ni Ireru
Hametsu Yotei no Akushinkan, Akuyaku Reijou to Onna Shujinkou o Niku Benki ni Shite Subete o Te ni Ireru
NAN%
Tags
  • Priest(ess) Protagonist
  • Naked Dogeza
  • Heroine with Slave Tattoo (BDSM)
  • Sexual Harassment
  • Unavoidable Heroine Rape by the Protagonist
Rating 5.5678 Users
Jiyuujizai ni Ero Saimin ~DameDame no Ore demo Bishoujo Taimashi to Yarimakuri!~
Jiyuujizai ni Ero Saimin ~DameDame no Ore demo Bishoujo Taimashi to Yarimakuri!~
NAN%
Tags
  • Possession
  • Extremely (un)Lucky Protagonist
  • Occult Club
  • Save Memo Function
  • Student Club Member Protagonist
Rating 5.8425 Users
Kyokon de Nama Hame Ou ni Nareru Gakuen ~Joshi Gakusei Minna Haramase Niku Onaholes! Itsudemo Dokodemo Seishi-sama o Haisetsu Shite Ranshi Kuppuku Sasete Kurashai♪~
Kyokon de Nama Hame Ou ni Nareru Gakuen ~Joshi Gakusei Minna Haramase Niku Onaholes! Itsudemo Dokodemo Seishi-sama o Haisetsu Shite Ranshi Kuppuku Sasete Kurashai♪~
NAN%
Tags
  • Consensual Erotic Humiliation
  • Sexual Slavery (Consensual)
  • Gaping
  • Reverse Trap Heroine
  • Ugly Protagonist
Rating 6.5527 Users
Nantai Prima Onna Kyoushi
Nantai Prima Onna Kyoushi
NAN%
Tags
  • Bisexual Heroine
  • Autocunnilingus
  • Big Breast Sizes Heroine
  • Sexual Devices
  • Sex in a Classroom
Rating 6.5922 Users
Sweets!! -Oshioki Sweetie Fandisc-
Sweets!! -Oshioki Sweetie Fandisc-
NAN%
Tags
  • Protagonist with Voice Acting
  • Big Breast Sizes Heroine
  • Excessive Semen
  • Legwear Footjob
  • Maid Heroine
Rating 6.9025 Users
Lilith-Izm03 ~If Story Hen~
Lilith-Izm03 ~If Story Hen~
NAN%
Tags
  • Officer Heroine
  • Gaping
  • Pantyjob
  • Anthology
  • Unavoidable Heroine Rape
Rating 6.3778 Users
Ma o Haramu Buki
Ma o Haramu Buki
NAN%
Tags
  • Urethral Intercourse
  • Sex With Monsters
  • Insemination by Non-Humanoids
  • Spreader Straps with Clamps
  • Anal Monster Birth
Rating 7.0037 Users
Kanpaku Sengen
Kanpaku Sengen
NAN%
Tags
  • Torture
  • Rape
  • Early Sexual Content
  • Clothing Damage
  • Genius Heroine
Rating 6.7734 Users
Lilith-Izm02 ~Nakadashi/Haramase Hen~
Lilith-Izm02 ~Nakadashi/Haramase Hen~
NAN%
Tags
  • Heroine with Catsuit
  • Kunoichi Heroine
  • Dog Cosplay
  • Future Japan
  • Ryona
Rating 6.23135 Users
Maou to Seijo ~Norowareshi Injoku no Rinne~
Maou to Seijo ~Norowareshi Injoku no Rinne~
39%
Tags
  • Maou Protagonist
  • Christian Mythology
  • Blowbang
  • Internal Exhibition of Sex
  • No "Keep Voice on Click" Option
Rating 6.4621 Users
Chocolate Princess! ~Ingoku no!? Homestay~
Chocolate Princess! ~Ingoku no!? Homestay~
31%
Tags
  • Huge Insertion
  • Mermaid Heroine
  • Gaping
  • Inflation
  • Heroine with Visible Panties
Rating 6.9527 Users
Lilith-Izm07 ~Ore no Pet Hen~
Lilith-Izm07 ~Ore no Pet Hen~
26%
Tags
  • Yuki-onna Heroine
  • All the Way Through
  • BDSM
  • Anthology
  • Mahou Shoujo Heroine
Rating 6.3324 Users
Mahou Shoujo Subaru
Mahou Shoujo Subaru
26%
Tags
  • Auto-Boobjob
  • Mahou Shoujo Heroine
  • Heroine with Leotard
  • Consensual Sex Involving Slime Monsters
  • Futanari on Futanari
Rating 6.1522 Users
Majo-gari no Kishi ~Jinkaku Ten
Majo-gari no Kishi ~Jinkaku Ten'i no Ori~
26%
Tags
  • Medieval Fantasy
  • Brother/Sister Incest
  • Body Swapping
  • Gaping
  • Incest
Rating 5.9823 Users
Himekishi Lilia ~Mashoku no Oujou ni Otsu~
Himekishi Lilia ~Mashoku no Oujou ni Otsu~
24%
Tags
  • Madam Heroine
  • Sexual Slavery (Non-consensual)
  • Medieval Fantasy
  • Heroine with Armor
  • High Amounts of Rape
Rating 6.4965 Users
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
Lilith-Izm06 ~Digi Anime with Lily & Lilia Gaiden~
24%
Tags
  • Heroine with Bodystocking
  • Heroine with Slave Tattoo (BDSM)
  • Gaping
  • Anthology
  • Internal Exhibition of Sex
Rating 6.2542 Users
Seiso na JK ni Biyaku Mamire no Chi*po o Soku Hame Shitara Ore no Seieki Benki ni Natta!
Seiso na JK ni Biyaku Mamire no Chi*po o Soku Hame Shitara Ore no Seieki Benki ni Natta!
23%
Tags
  • Sex Involving Drugs
  • Excessive Semen
  • Protagonist's Cousin as a Heroine
  • Tribadism on Penis
  • Unavoidable Heroine Rape
Rating 6.3521 Users
Sengoku Makan
Sengoku Makan
23%
Tags
  • Sengoku Period
  • Onna Bugeisha Heroine
  • Protagonist Based on Real Person
  • Heroine Based on Real Person
  • Strong Female Protagonist
Rating 6.0229 Users
Jiyuujizai ni Ero Saimin ~DameDame no Ore demo Bishoujo Taimashi to Yarimakuri!~
Jiyuujizai ni Ero Saimin ~DameDame no Ore demo Bishoujo Taimashi to Yarimakuri!~
23%
Tags
  • Possession
  • Extremely (un)Lucky Protagonist
  • Occult Club
  • Save Memo Function
  • Student Club Member Protagonist
Rating 5.8425 Users
Nantai Prima Onna Kyoushi
Nantai Prima Onna Kyoushi
22%
Tags
  • Bisexual Heroine
  • Autocunnilingus
  • Big Breast Sizes Heroine
  • Sexual Devices
  • Sex in a Classroom
Rating 6.5922 Users
Lilith-Izm03 ~If Story Hen~
Lilith-Izm03 ~If Story Hen~
22%
Tags
  • Officer Heroine
  • Gaping
  • Pantyjob
  • Anthology
  • Unavoidable Heroine Rape
Rating 6.3778 Users
Lilith-Izm02 ~Nakadashi/Haramase Hen~
Lilith-Izm02 ~Nakadashi/Haramase Hen~
20%
Tags
  • Heroine with Catsuit
  • Kunoichi Heroine
  • Dog Cosplay
  • Future Japan
  • Ryona
Rating 6.23135 Users
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
Ookami Shoujo Reona -Yasei Houkai Hakuchi Kyouiku-
20%
Tags
  • Rapist Protagonist
  • Internal Exhibition of Sex
  • Central Heroine
  • Sexual Devices
  • Object Insertion
Rating 6.6820 Users
Bakunyuu Hoken Onna Kyoushi
Bakunyuu Hoken Onna Kyoushi
20%
Tags
  • Sex in a School Infirmary
  • School Nurse Heroine
  • Clothed Male Naked Female
  • Bisexual Heroine
  • Teacher Heroine
Rating 6.5933 Users
Love Fetish ~Paizuri Hen~
Love Fetish ~Paizuri Hen~
20%
Tags
  • Flat Tints Only
  • Reverse Trap Heroine
  • Naizuri
  • Small Breast Sizes Heroine (Non-Loli)
  • Bokukko Heroine
Rating 6.8020 Users
Dai Gyakuten! Mujintou wa Rape Paradise
Dai Gyakuten! Mujintou wa Rape Paradise
20%
Tags
  • Stranded
  • 100% Completion Bonus
  • Completion Status Indicator
  • Sexual Slavery (Choukyou Variation)
  • Island
Rating 6.4227 Users
Lilith-Izm08 ~Nobushito Black Izm~
Lilith-Izm08 ~Nobushito Black Izm~
19%
Tags
  • Unavoidable Heroine Rape
  • Kunoichi Heroine
  • Hetare Protagonist
  • Heroine with Tattoo
  • Small Breast Sizes Heroine (Non-Loli)
Rating 6.9736 Users
Ore no Saimin Fantasia ~Ero Saimin de Ikusa Megami kara Maou made Hame Houdai!!~
Ore no Saimin Fantasia ~Ero Saimin de Ikusa Megami kara Maou made Hame Houdai!!~
19%
Tags
  • Erotic Mind Control
  • Maou Heroine
  • Deities
  • Protagonist from a Different World
  • Demon Heroine
Rating 6.7133 Users
Ryoubo -Maternity Insult-
Ryoubo -Maternity Insult-
19%
Tags
  • Protagonist's Blood-related Mother as a Heroine
  • Blood-related Mother/Son Incest
  • Body Piercing
  • Heroine With Kansai Accent
  • Pregnancy
Rating 6.8036 Users
Mahou Shoujo Fairy Knights
Mahou Shoujo Fairy Knights
19%
Tags
  • Single Hole Multiple Penetration (obsolete)
  • Mahou Shoujo Heroine
  • Gaping
  • Single Hole Multiple Tentacle Penetration (obsolete)
  • Remote-controlled Vibrator
Rating 6.5039 Users
Saimin, Suki Desu yo ne? ~Idol Datte Hatsujou Sasemasu~
Saimin, Suki Desu yo ne? ~Idol Datte Hatsujou Sasemasu~
19%
Tags
  • Flat Tints Only
  • Mind Control
  • Clothed Female Naked Male
  • Vaginal Gaping
  • Erotic Mind Control
Rating 6.1120 Users
Kyokon de Tanezuke Bokujou ni Naru Machi ~Meimon Oyako-tachi o Katappashi Kara Harama Seifuku! Machinaka no Mesuana ga Ore no Kachiku ni Naritagaru!~
Kyokon de Tanezuke Bokujou ni Naru Machi ~Meimon Oyako-tachi o Katappashi Kara Harama Seifuku! Machinaka no Mesuana ga Ore no Kachiku ni Naritagaru!~
19%
Tags
  • Human Cattle
  • Linked Piercings
  • Heroine with Slave Tattoo (BDSM)
  • Stuck-in-Wall Sex
  • Cum on Food
Rating 6.3841 Users

Seieki Tairyou Chuunyuu! ~Ore no Kodane wa Biyaku Iri~ 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 (36 total)

NameScoreImportanceWeight
Inflation3.001.765.28
Excessive Semen3.001.654.95
Unavoidable Heroine Rape by the Protagonist2.002.364.73
Medical Doctor Heroine2.002.124.23
Huge Insertion2.001.853.70
Revenge2.001.713.42
Ahegao2.501.253.12
Pregnancy2.001.523.05
Teacher Heroine2.001.362.73
Body Fluid Tube1.002.642.64
Single Handjob2.001.252.51
High School2.001.222.44
Autobukkake1.002.432.43
Anal Sex2.001.142.27
Sex with Protagonist Only2.001.132.26
Sex in Public Places2.001.092.17
Naked Sprites2.001.052.11
Vaginal Gaping1.002.102.10
Group Sex of Several Females1.001.991.99
Group Sex of One Male and Several Females2.000.921.83
Sex on Toilet1.001.741.74
Heroine with Big Breasts2.000.851.71
High School Student Heroine2.000.851.70
Facesitting1.001.651.65
Anal Fingering1.001.481.48
Nukige2.000.651.30
Female Ejaculation1.001.271.27
Vaginal Fingering1.001.261.26
Bukkake1.001.201.20
Lesbian Sex1.001.151.15
Sixty-nine1.001.071.07
Standing Sex1.001.061.06
Single Blowjob1.000.970.97
Cowgirl1.000.840.84
Doggy Style1.000.800.80
ADV2.000.150.29

Traits (72 total)

NameCharactersImportanceWeight
Group Sex of Several Females Engages in (Sexual)42.283.68
Inflated Belly Subject of (Sexual)42.043.28
Gas Mask Clothes13.352.32
Lesbian Sex Engages in (Sexual)41.382.22
Ringlet Hair22.002.19
Rape Subject of (Sexual)31.562.17
Ahegao Engages in (Sexual)41.322.13
Latex Gloves Clothes13.002.08
Body Fluid Tube Subject of (Sexual)12.962.05
Ballerina Shoes Clothes12.922.03
Reverse Spitroast Subject of (Sexual)21.842.02
Sex in Public Places Engages in (Sexual)41.262.02
Blazer Clothes21.832.01
Uwabaki Clothes12.871.99
Group Sex of One Male and Several Females Engages in (Sexual)41.171.89
Idealist Personality12.701.87
Bukkake Subject of (Sexual)31.351.87
Handjob Engages in (Sexual)41.161.86
Vaginal Fingering Engages in (Sexual)21.621.78
Medium Breasts Body21.521.67
Pantyhose Clothes21.421.56
Bullying Engages in12.251.56
Ambitious Personality12.211.53
Masturbation Engages in (Sexual)21.391.53
Medical Doctor Role12.091.45
Curtained Hair21.301.43
Sex on Toilet Engages in (Sexual)12.041.41
Facesitting Engages in (Sexual)11.971.37
Vaginal Gaping Engages in (Sexual)11.951.35
Cravat Clothes11.921.33
Violet Hair21.191.31
Anal Sex Subject of (Sexual)21.191.31
Standing Sex Subject of (Sexual)21.181.29
Butterfly Subject of (Sexual)21.171.29
Doggy Style Subject of (Sexual)30.931.28
String Ribbon Tie Clothes11.821.26
Big Breasts Body21.141.25
Lab Coat Clothes11.801.25
Skirt Suit Clothes11.741.21
Anal Fingering Subject of (Sexual)11.711.19
Cyan Eyes11.661.15
Mole Body11.591.10
Teacher Role11.551.08
Sidehair Hair20.981.07
Blowjob Engages in (Sexual)30.761.06
Cowgirl Subject of (Sexual)20.951.05
V Bangs Hair11.410.98
Hairpin Clothes11.400.97
Bathroom Sex Engages in (Sexual)11.390.96
High School Student Role20.850.93
Sixty-nine Engages in (Sexual)11.260.87
Parted in Middle Hair11.250.87
Young-adult Body20.760.84
Long Hair20.750.83
Trousers Clothes11.190.83
School Uniform Clothes20.750.83
Shirt Clothes11.160.80
Necktie Clothes11.110.77
Ponytail Hair11.100.76
Sitting Sex Subject of (Sexual)11.060.74
Parted to Side Hair11.050.73
Violet Eyes11.040.72
Thigh-high Stockings Clothes11.040.72
Amber Eyes11.030.71
Green Eyes11.020.70
Spiky Bangs Hair11.000.69
Teen Body20.620.68
Shoulder-length Hair10.920.64
Blond Hair10.890.62
Pale Body30.370.51
Brown Hair10.680.47
Short Hair10.610.42