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Summary

Magic exists in the world of Grand Esteca. There’s a magic library in the town of Altrium where all books of sorcery are kept. There resides a closely guarded book 30 floors underneath the library: the powerful book of sorcery, Grimoire, within which was sealed the demon who unleashed his fury in a war long ago. However, now he is merely a perverted demon with no dignity whatsoever. The librarian Mihai loves reading books and came upon and became friends with Grimoire. He respected the demon despite his current situation due to his immense magical knowledge. However, one day, someone stole these pages of knowledge from Grimoire and they ended up dispersed in other continents. It might cause a new world war to break out. Concerned about the situation, the sage Maynard ordered Mihai to recover the pages. [From Hau~ Omochikaeri!]

Itazura ~Boku Dake no Zettai Ryouiki~
Itazura ~Boku Dake no Zettai Ryouiki~
NAN%
Tags
  • Chikan Heroine
  • Hotel
  • Trains
  • Voiced Thoughts
  • Pregnancy Good Ending
Rating 6.1820 Users
Himegoto Union Motto H!
Himegoto Union Motto H!
NAN%
Tags
  • Shimaidon
  • Reverse Trap Heroine
  • Linear Plot
  • Twin Handjob
  • Soapy Massage
Rating 7.3721 Users
Saint Estella Gakuin no Shichinin no Majo
Saint Estella Gakuin no Shichinin no Majo
NAN%
Tags
  • School Dormitory
  • Avoidable Rape
  • Anal Rape
  • Pragmatic Heroine
  • Witch Heroine
Rating 7.44100 Users
Pen Pen Penalty - Hakoiri Musume-tachi o H ni Oshioki!!
Pen Pen Penalty - Hakoiri Musume-tachi o H ni Oshioki!!
NAN%
Tags
  • Food Gokkun
  • Cum on Food
  • Heroine with Shorts
  • Mirror Sex
  • Big Ass Heroine
Rating 7.3748 Users
Akabanzu ~Real na Sekai de Boku ga Kimi ni Dekiru Koto~
Akabanzu ~Real na Sekai de Boku ga Kimi ni Dekiru Koto~
NAN%
Tags
  • Genius Support Character
  • Transfer Student Heroine
  • School Sports Club
  • Trap Support Character
  • AI Heroine
Rating 6.6824 Users
Shinkon Seikatsu
Shinkon Seikatsu
NAN%
Tags
  • Birthrate Decline
  • Robot Hero
  • Relationship Problems
  • Blood-related Incest
  • Foolish Villain
Rating 7.0280 Users
Bikyaku Reijou Yuuna "Ashi mo Oshiri mo Konna ni Yogosu Nante... Zettai ni Yurusanai!"
Bikyaku Reijou Yuuna "Ashi mo Oshiri mo Konna ni Yogosu Nante... Zettai ni Yurusanai!"
NAN%
Tags
  • Butler Protagonist
  • Arrogant Heroine
  • Protagonist's Boss as a Heroine
  • Heroine with Tights
  • Master and Servant
Rating 7.2337 Users
Boku no xx wa Ryousei-tachi no Tokken Desu!
Boku no xx wa Ryousei-tachi no Tokken Desu!
NAN%
Tags
  • Dormitory Manager Protagonist
  • Sprite Filter
  • School Sports Club Member Heroine
  • Protagonist with Phimosis
  • Defloration During Common Route
Rating 6.8442 Users
Spocon! ~Sports Wear-Complex~
Spocon! ~Sports Wear-Complex~
NAN%
Tags
  • School Sports Club
  • Archery Club
  • School Sports Club Member Heroine
  • Tennis Club
  • Swimming Club
Rating 7.5479 Users
Mirai Senki Slavenil
Mirai Senki Slavenil
NAN%
Tags
  • Mayadere Heroine
  • Pirate Heroine
  • Nanomachines
  • Assassin Heroine
  • Homemaker Protagonist
Rating 6.8032 Users
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
NAN%
Tags
  • Full Chastity Belt
  • Quadruple+ Blowjob
  • Clothed Female Naked Male
  • Protagonist's Sister as a Heroine
  • Cosplay
Rating 7.0230 Users
Oshirikko Venus 2
Oshirikko Venus 2
NAN%
Tags
  • Non-penetrative Sex
  • Big Ass Heroine
  • Perverted Protagonist
  • Twin Footjob
  • Sex on a Roof
Rating 7.2831 Users
Aku Yome! Akuma na Yome ni Shiborareru
Aku Yome! Akuma na Yome ni Shiborareru
NAN%
Tags
  • Defloration During Common Route
  • Incubus Protagonist
  • Oni Heroine
  • Werewolf Heroine
  • Polygamy
Rating 7.2447 Users
Kimi no Mana wa Rina Witch
Kimi no Mana wa Rina Witch
NAN%
Tags
  • Magic School
  • Heroine with Bodystocking
  • Sex Under the Necessity
  • Track Display
  • Mahou Shoujo Heroine
Rating 6.9522 Users
To~mei Heaven! ~Toumei Ningen ni Natte Bishoujo-tachi o Momi Makuri!!~
To~mei Heaven! ~Toumei Ningen ni Natte Bishoujo-tachi o Momi Makuri!!~
NAN%
Tags
  • Invisibility
  • Sexually Oblivious Heroine
  • Mischievous Protagonist
  • Short Common Route
  • School Life Comedy
Rating 6.7321 Users
Marchen Sou ~Choppiri Zannen na Musume-tachi to Marchen☆Docking Zakkyo Seikatsu~
Marchen Sou ~Choppiri Zannen na Musume-tachi to Marchen☆Docking Zakkyo Seikatsu~
NAN%
Tags
  • Love Interest's Gender Choice
  • Trap Heroine
  • Chuunibyou Heroine
  • Discreet Masturbation
  • Heroine with Inverted Nipples
Rating 6.8141 Users
Ossan Kyoushi no Joshikousei Tsuma ga Yarichin Danshi ni Netorareru Hanashi
Ossan Kyoushi no Joshikousei Tsuma ga Yarichin Danshi ni Netorareru Hanashi
NAN%
Tags
  • Netorare
  • Pregnancy
  • Clothed Female Naked Male
  • Netorare Type B
  • Impregnation
Rating 6.7437 Users
Iede Kissa ~Anata no Booth de Kasegasete~
Iede Kissa ~Anata no Booth de Kasegasete~
NAN%
Tags
  • Prostitute Protagonist
  • Runaway Heroine
  • Prostitution
  • Sex Involving Prostitution
  • Cafe
Rating 6.6520 Users
D-EVE in you
D-EVE in you
NAN%
Tags
  • Japanese Idols
  • Idol Heroine
  • Singer Heroine
  • Heroine with Intake Hairstyle
  • Exhibitionism
Rating 7.1025 Users
Toshishita Gentei Nuki x2 Share-house ~Shiborare Kyoudou Seikatsu~
Toshishita Gentei Nuki x2 Share-house ~Shiborare Kyoudou Seikatsu~
NAN%
Tags
  • Share House
  • Dormitory Manager Protagonist
  • Summer
  • Masochist Protagonist
  • Kneepit Sex
Rating 6.7237 Users
Maou no Kuse ni Namaiki da!
Maou no Kuse ni Namaiki da!
NAN%
Tags
  • Maou Heroine
  • Hikikomori Protagonist
  • Consensual Sex Involving Slime Monsters
  • Naga Heroine
  • Chuunibyou Heroine
Rating 7.42120 Users
Maid in Witch Life! -Yakata de Hajimaru H na Miryou Seikatsu-
Maid in Witch Life! -Yakata de Hajimaru H na Miryou Seikatsu-
NAN%
Tags
  • Witch Heroine
  • Chuunibyou Heroine
  • Voice Saving
  • Maid Heroine
  • Heroine with Garter Belt
Rating 7.3534 Users
Oh Yuusha yo, Itte Shimau to wa Nasakenai!
Oh Yuusha yo, Itte Shimau to wa Nasakenai!
NAN%
Tags
  • Boke Heroine
  • Rejuvenation
  • Bleep Censor
  • Straight Shotacon
  • Heroine with Bodystocking
Rating 7.4964 Users
Maou no Kuse ni Namaiki da! 2 ~Kondo wa Seisen da!~
Maou no Kuse ni Namaiki da! 2 ~Kondo wa Seisen da!~
NAN%
Tags
  • Naga Heroine
  • Hikikomori Protagonist
  • Maou Heroine
  • Maou Protagonist
  • Chuunibyou Heroine
Rating 7.8565 Users
Erect!
Erect!
30%
Tags
  • Class President Protagonist
  • Heroine with Visible Panties
  • Multiple Penises
  • Succubus Heroine
  • Demon Heroine
Rating 7.66135 Users
Aozora Stripe
Aozora Stripe
26%
Tags
  • Cook Protagonist
  • Panchira
  • Charming Protagonist
  • Serious Protagonist
  • Slice of Life Comedy
Rating 7.7099 Users
Kimi no Mana wa Rina Witch
Kimi no Mana wa Rina Witch
25%
Tags
  • Magic School
  • Heroine with Bodystocking
  • Sex Under the Necessity
  • Track Display
  • Mahou Shoujo Heroine
Rating 6.9522 Users
Aku Yome! Akuma na Yome ni Shiborareru
Aku Yome! Akuma na Yome ni Shiborareru
25%
Tags
  • Defloration During Common Route
  • Incubus Protagonist
  • Oni Heroine
  • Werewolf Heroine
  • Polygamy
Rating 7.2447 Users
Oshirikko Venus 2
Oshirikko Venus 2
25%
Tags
  • Non-penetrative Sex
  • Big Ass Heroine
  • Perverted Protagonist
  • Twin Footjob
  • Sex on a Roof
Rating 7.2831 Users
Mirai Senki Slavenil
Mirai Senki Slavenil
23%
Tags
  • Mayadere Heroine
  • Pirate Heroine
  • Nanomachines
  • Assassin Heroine
  • Homemaker Protagonist
Rating 6.8032 Users
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
Onii-chan!! Shasei no Kanri wa Imouto ni Makasete!!
23%
Tags
  • Full Chastity Belt
  • Quadruple+ Blowjob
  • Clothed Female Naked Male
  • Protagonist's Sister as a Heroine
  • Cosplay
Rating 7.0230 Users
Boku no xx wa Ryousei-tachi no Tokken Desu!
Boku no xx wa Ryousei-tachi no Tokken Desu!
23%
Tags
  • Dormitory Manager Protagonist
  • Sprite Filter
  • School Sports Club Member Heroine
  • Protagonist with Phimosis
  • Defloration During Common Route
Rating 6.8442 Users
Spocon! ~Sports Wear-Complex~
Spocon! ~Sports Wear-Complex~
22%
Tags
  • School Sports Club
  • Archery Club
  • School Sports Club Member Heroine
  • Tennis Club
  • Swimming Club
Rating 7.5479 Users
Marchen Sou ~Choppiri Zannen na Musume-tachi to Marchen☆Docking Zakkyo Seikatsu~
Marchen Sou ~Choppiri Zannen na Musume-tachi to Marchen☆Docking Zakkyo Seikatsu~
22%
Tags
  • Love Interest's Gender Choice
  • Trap Heroine
  • Chuunibyou Heroine
  • Discreet Masturbation
  • Heroine with Inverted Nipples
Rating 6.8141 Users
Iede Kissa ~Anata no Booth de Kasegasete~
Iede Kissa ~Anata no Booth de Kasegasete~
22%
Tags
  • Prostitute Protagonist
  • Runaway Heroine
  • Prostitution
  • Sex Involving Prostitution
  • Cafe
Rating 6.6520 Users
Toshishita Gentei Nuki x2 Share-house ~Shiborare Kyoudou Seikatsu~
Toshishita Gentei Nuki x2 Share-house ~Shiborare Kyoudou Seikatsu~
22%
Tags
  • Share House
  • Dormitory Manager Protagonist
  • Summer
  • Masochist Protagonist
  • Kneepit Sex
Rating 6.7237 Users
Maid in Witch Life! -Yakata de Hajimaru H na Miryou Seikatsu-
Maid in Witch Life! -Yakata de Hajimaru H na Miryou Seikatsu-
22%
Tags
  • Witch Heroine
  • Chuunibyou Heroine
  • Voice Saving
  • Maid Heroine
  • Heroine with Garter Belt
Rating 7.3534 Users
Maou no Kuse ni Namaiki da! 2 ~Kondo wa Seisen da!~
Maou no Kuse ni Namaiki da! 2 ~Kondo wa Seisen da!~
21%
Tags
  • Naga Heroine
  • Hikikomori Protagonist
  • Maou Heroine
  • Maou Protagonist
  • Chuunibyou Heroine
Rating 7.8565 Users
Unionism Quartet
Unionism Quartet
21%
Tags
  • Bodyguard Heroine
  • Tournament
  • Tactician Heroine
  • Duel
  • Spontaneous Power-ups
Rating 7.65132 Users
ESEX Shikorsky: INTERNEET Security Cloud 2017
ESEX Shikorsky: INTERNEET Security Cloud 2017
21%
Tags
  • AI Heroine
  • Anthropomorphized Inanimate Object
  • Loli Support Character
  • Title Parody
  • Internet
Rating 6.4939 Users
Majodou ~Ano Chirigiwa no Utsukushisa~
Majodou ~Ano Chirigiwa no Utsukushisa~
21%
Tags
  • Witch Heroine
  • Kemonomimi Support Character
  • American Heroine
  • Albino Heroine
  • Cats
Rating 7.4642 Users
Oiran Rouge
Oiran Rouge
21%
Tags
  • Edo Era
  • Brothel
  • Past Tokyo
  • Prostitute Heroine
  • Prostitution
Rating 6.5327 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~
21%
Tags
  • Cosplay
  • Footjob
  • Nympho Heroine
  • Spoons
  • Impregnation
Rating 6.3430 Users
Koinosu ☆ Ichacolize
Koinosu ☆ Ichacolize
20%
Tags
  • Scenario Selection
  • Cheerleader Heroine
  • Apartment Building
  • Hero(ine) Selection
  • Waitress Heroine
Rating 7.1863 Users
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
Meimon Joshikou Ryokou ~Ore Dake Otoko Nandesu ga!?~
20%
Tags
  • Trap Protagonist
  • Single Buttjob
  • All-girls School
  • Half-Japanese Heroine
  • Only Virgin Heroines
Rating 7.1022 Users
Oshirikko Venus
Oshirikko Venus
20%
Tags
  • Panchira
  • Brief Third-person Narrative Sections
  • Tsukkomi Protagonist
  • Long Sexual Scenes
  • Pragmatic Heroine
Rating 7.0241 Users
3Ping Lovers! ☆ Ippu Nisai no Sekai e Youkoso♪
3Ping Lovers! ☆ Ippu Nisai no Sekai e Youkoso♪
20%
Tags
  • Polygamy
  • Protagonist from a Different World
  • Twin Buttjob
  • Tactician Protagonist
  • Excessive Semen
Rating 7.26110 Users
Otome Switch ~Kare ga Motteru Kanojo no Remocon~
Otome Switch ~Kare ga Motteru Kanojo no Remocon~
20%
Tags
  • Class President Heroine
  • Remote-controlled Vibrator
  • Protagonist's Twin as a Heroine
  • Highly Animated Sprites
  • Heroine with Swimsuits
Rating 6.9669 Users

Grimoire no Shisho 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
Mage Protagonist3.002.146.43
Energy Transfer via Sex2.502.385.95
Magic/ESP Combat3.001.865.58
Nun Heroine2.502.185.44
Fighting Protagonist3.001.705.09
Thief Heroine2.002.535.06
Priestess Heroine2.002.474.93
Sex Under the Necessity2.501.964.90
Genius Protagonist2.002.424.84
Tentacle Blowjob2.002.354.70
Vaginal + Anal Tentacle Penetration2.002.204.40
Succubus Heroine2.001.973.95
Completely Avoidable Netorare1.672.363.94
Completely Avoidable Rape1.672.343.92
Mage Heroine2.001.933.85
Demons2.001.893.78
Airhead Heroine2.001.773.54
Unlockable Bonus Content2.001.723.44
Death of Protagonist2.001.713.42
Protagonist with Glasses2.001.683.36
Bonus Side Stories2.001.613.23
Game Over2.001.482.96
Tsundere Heroine2.001.402.80
Single Footjob2.001.372.75
Tentacle Rape2.001.342.69
Fantasy2.001.242.48
Bad Ending(s)2.001.192.38
Defloration2.000.751.49
Male Protagonist2.000.300.60
Sexual Content0.670.610.41
ADV2.000.140.29
2.000.000.00

Traits (48 total)

NameCharactersImportanceWeight
Sex with Monsters Engages in (Sexual)22.132.34
Double Handjob Engages in (Sexual)21.882.06
Deredere Personality21.751.93
Librarian Role12.781.93
Footjob Engages in (Sexual)21.711.88
Protective Personality21.711.87
Guimpe Clothes12.661.85
Double Penetration (Group Sex) Subject of (Sexual)21.641.80
Legwear Footjob Engages in (Sexual)12.491.72
Habit Clothes12.401.67
Cross Design Clothes12.361.63
Religious Personality12.321.61
Suspenders Clothes12.301.59
Bukkake Subject of (Sexual)21.341.47
Book Items12.121.47
Waist Length+ Hair50.801.43
Inflated Belly Subject of (Sexual)12.041.41
Demon Role12.011.39
Decorative Belt Clothes11.971.37
Cravat Clothes11.921.33
Anal Sex Subject of (Sexual)21.191.30
Tsundere Personality11.871.30
Hidden Eyes11.811.25
Confinement Subject of11.761.22
Confident Personality11.721.20
Boots Clothes11.681.16
Pointed Ears Body11.651.14
Thigh-high Stockings Clothes21.031.13
Pink Eyes11.611.12
Teen Body50.611.10
Magician Role11.581.10
Rape Subject of (Sexual)11.561.08
Slim Body50.571.02
Pink Hair11.320.92
Blue Eyes20.800.88
Trousers Clothes11.210.84
Violet Hair11.190.82
Blue Hair11.180.82
Shirt Clothes11.150.80
Glasses Clothes11.080.75
Vaginal Fingering Subject of (Sexual)11.080.75
Kind Personality11.040.72
Violet Eyes11.040.72
Amber Eyes11.020.71
Pale Body50.370.66
Blond Hair10.880.61
Virgin Sex Engages in (Sexual)10.840.58
Black Hair10.810.56