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Summary

Known only as "Ninja", these mysterious mercenaries have worked in the shadows of history from ages past. Dealing in espionage, secrect plots and assassination, the ninja brought prosperity to Daimyo and Fuedal lords from the shadows. Present day--- In the village of their ancestors, ninja continue to leave for training, as is tradition. However, due to lack of requests for work, the village has become nothing but a small gathering of houses in the mountains. It is from this village that Sumire was commanded to leave, with orders to train in the city by her father, the village chief. However, lacking food and money, she collapses on the side of the road. Saved by the main character, she is determined to repay her debt to him and suddenly becomes an univited guest as his house... The sullen main character and the clumsy Sumire start their erotic cohabitation! [From Official website]

Nyan Café Macchiato ~Neko ga Iru Café no Ecchi Jijou~
Nyan Café Macchiato ~Neko ga Iru Café no Ecchi Jijou~
NAN%
Tags
  • Love Rivalry
  • Protagonist's Employee as a Heroine
  • Polyamory
  • Student-Teacher Romance
  • Homemaker Protagonist
Rating 6.82242 Users
Knot Fiction!
Knot Fiction!
NAN%
Tags
  • Mischievous Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Writer Heroine
  • Spring
  • Pure Love Story
Rating 7.05153 Users
Momoiro Closet
Momoiro Closet
NAN%
Tags
  • Comic Convention
  • Dirty Talk
  • Non-sexual Cosplay
  • Modern Day Akihabara
  • Non-penetrative Sex
Rating 6.70623 Users
WABISABI
WABISABI
NAN%
Tags
  • Painter Protagonist
  • Homecoming
  • Kemonomimi Heroine
  • Countryside
  • Goddess Heroine
Rating 5.97141 Users
Boku to Koi Suru Ponkotsu Akuma.
Boku to Koi Suru Ponkotsu Akuma.
NAN%
Tags
  • Yuki-onna Heroine
  • Unlockable Concept Art
  • Mummy
  • Movable Text Box
  • Unlockable Hero(ine)
Rating 7.031,472 Users
DraPri Guu-ta-life LOVE + PLUS
DraPri Guu-ta-life LOVE + PLUS
NAN%
Tags
  • Dragon Heroine
  • Comedic Love Triangle
  • Poor Protagonist
  • Muted Obscenities
  • Unavoidable Harem Ending
Rating 6.43218 Users
DraPri Guu-ta-life 2
DraPri Guu-ta-life 2
NAN%
Tags
  • Royal Heroine
  • Dragon Heroine
  • Comedic Love Triangle
  • Queen Heroine
  • Poor Protagonist
Rating 7.01234 Users
Isekai Sakaba no Sextet ~Vol.1 New World Days~
Isekai Sakaba no Sextet ~Vol.1 New World Days~
NAN%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Cliffhanger Ending
  • No "Keep Voice on Click" Option
Rating 6.60489 Users
Neko-nin exHeart 3
Neko-nin exHeart 3
NAN%
Tags
  • Sex Scene Recollection
  • Kunoichi Heroine
  • Brief Branches Only
  • Catgirl Heroine
  • Rabbitgirl Heroine
Rating 7.06264 Users
NekoMiko
NekoMiko
NAN%
Tags
  • Modern Day Akihabara
  • No "Keep Voice on Click" Option
  • Catgirl Heroine
  • Apartment Building
  • Extremely (un)Lucky Protagonist
Rating 6.21466 Users
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
NAN%
Tags
  • Heroine from a Different World
  • Priestess Heroine
  • Unavoidable Harem Ending
  • Polyamory
  • Protagonist from a Different World
Rating 6.75267 Users
IdolDays
IdolDays
NAN%
Tags
  • Delinquent Heroine
  • Japanese Idols
  • No "Keep Voice on Click" Option
  • Highly Animated Sprites
  • Idol Heroine
Rating 6.05160 Users
Isekai Sakaba no Sextet ~Vol.2 Adventurer
Isekai Sakaba no Sextet ~Vol.2 Adventurer's Days~
NAN%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Polyamory
  • Panchira
Rating 6.59323 Users
KukkoroDays
KukkoroDays
NAN%
Tags
  • Heroine from a Different World
  • Heroine with Armor
  • Onna Bugeisha Heroine
  • Protagonist as the Only Male
  • Knight Heroine
Rating 6.47437 Users
Amayakase Kanojo no Iru Seikatsu -Ichizu na Ginpatsu Bishoujo wa Suki Desu ka?-
Amayakase Kanojo no Iru Seikatsu -Ichizu na Ginpatsu Bishoujo wa Suki Desu ka?-
NAN%
Tags
  • Apartment Building
  • No Support Character
  • Protagonist's Niece as a Heroine
  • Ojicon
  • Blood-related Uncle/Niece Incest
Rating 5.76305 Users
Loca Love - Dousei x Kouhai
Loca Love - Dousei x Kouhai
NAN%
Tags
  • Pillow Talk
  • Protagonist's Kouhai as a Heroine
  • Panchira
  • Co-worker Heroine
  • Under the Same Roof
Rating 6.83583 Users
Wan Nyan ☆ A La Mode! ~Docchi ni Suru no? Wan Nyan H na Café Jijou!~
Wan Nyan ☆ A La Mode! ~Docchi ni Suru no? Wan Nyan H na Café Jijou!~
NAN%
Tags
  • Baker Protagonist
  • Comedic Love Triangle
  • Clothed Boobjob
  • Changeable Clothes
  • Donkan Protagonist
Rating 6.57186 Users
Neko-nin exHeart 2
Neko-nin exHeart 2
NAN%
Tags
  • Sex Scene Recollection
  • Kunoichi Heroine
  • Catgirl Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Rabbitgirl Heroine
Rating 6.88430 Users
LOVE³ -Love Cube-
LOVE³ -Love Cube-
NAN%
Tags
  • Mangaka Protagonist
  • Chest Bounciness Slider
  • Mangaka Heroine
  • Polyamory
  • Unlock All Scenes Option
Rating 6.70563 Users
Loca Love - Densha x Doukyuusei
Loca Love - Densha x Doukyuusei
NAN%
Tags
  • Trains
  • Heroine with Garter Belt
  • Voice Saving
  • Sex in a Vehicle
  • Kuudere Heroine
Rating 7.00518 Users
Study § Steady
Study § Steady
NAN%
Tags
  • Protagonist with Voiced Changeable Names
  • Archer Heroine
  • Sexually Oblivious Heroine
  • Hairstyle Option
  • Artificial Intelligence
Rating 7.09720 Users
Neko-nin exHeart +Plus Nachi Hen
Neko-nin exHeart +Plus Nachi Hen
NAN%
Tags
  • Catgirl Heroine
  • Kunoichi Heroine
  • Modern Tsundere Heroine
  • Background Moans
  • Sex with Protagonist Only
Rating 6.51398 Users
IxSHE Tell
IxSHE Tell
NAN%
Tags
  • Student Council President Protagonist
  • Popular Protagonist
  • Love Triangle
  • Yamato Nadeshiko Heroine
  • School Life Comedy
Rating 6.951,218 Users
Uchi no Kanojo
Uchi no Kanojo
NAN%
Tags
  • Salaryman Protagonist
  • Backlog Jump
  • Ejaculation Forewarner
  • Deredere Heroine
  • Slice of Life
Rating 6.75269 Users
NinNinDays2
NinNinDays2
48%
Tags
  • Kunoichi Heroine
  • Short Heroine
  • Highly Animated Sprites
  • No "Keep Voice on Click" Option
  • Heroine with Heterochromia
Rating 6.58127 Users
TroubleDays
TroubleDays
42%
Tags
  • Modern Day Akihabara
  • Highly Animated Sprites
  • Sudden Girlfriend Appearance
  • Succubus Heroine
  • No "Keep Voice on Click" Option
Rating 6.11360 Users
KukkoroDays
KukkoroDays
36%
Tags
  • Heroine from a Different World
  • Heroine with Armor
  • Onna Bugeisha Heroine
  • Protagonist as the Only Male
  • Knight Heroine
Rating 6.47437 Users
Isekai Sakaba no Sextet ~Vol.2 Adventurer
Isekai Sakaba no Sextet ~Vol.2 Adventurer's Days~
35%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Polyamory
  • Panchira
Rating 6.59323 Users
IdolDays
IdolDays
33%
Tags
  • Delinquent Heroine
  • Japanese Idols
  • No "Keep Voice on Click" Option
  • Highly Animated Sprites
  • Idol Heroine
Rating 6.05160 Users
NekoMiko
NekoMiko
33%
Tags
  • Modern Day Akihabara
  • No "Keep Voice on Click" Option
  • Catgirl Heroine
  • Apartment Building
  • Extremely (un)Lucky Protagonist
Rating 6.21466 Users
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
Isekai Sakaba no Sextet ~Vol.3 Postlude Days~
32%
Tags
  • Heroine from a Different World
  • Priestess Heroine
  • Unavoidable Harem Ending
  • Polyamory
  • Protagonist from a Different World
Rating 6.75267 Users
Isekai Sakaba no Sextet ~Vol.1 New World Days~
Isekai Sakaba no Sextet ~Vol.1 New World Days~
30%
Tags
  • Cook Protagonist
  • Bar
  • Unavoidable Harem Ending
  • Cliffhanger Ending
  • No "Keep Voice on Click" Option
Rating 6.60489 Users
Neko-nin exHeart 3
Neko-nin exHeart 3
25%
Tags
  • Sex Scene Recollection
  • Kunoichi Heroine
  • Brief Branches Only
  • Catgirl Heroine
  • Rabbitgirl Heroine
Rating 7.06264 Users
Loca Love - Dousei x Kouhai
Loca Love - Dousei x Kouhai
25%
Tags
  • Pillow Talk
  • Protagonist's Kouhai as a Heroine
  • Panchira
  • Co-worker Heroine
  • Under the Same Roof
Rating 6.83583 Users
Neko-nin exHeart 2
Neko-nin exHeart 2
24%
Tags
  • Sex Scene Recollection
  • Kunoichi Heroine
  • Catgirl Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Rabbitgirl Heroine
Rating 6.88430 Users
Loca Love - Densha x Doukyuusei
Loca Love - Densha x Doukyuusei
23%
Tags
  • Trains
  • Heroine with Garter Belt
  • Voice Saving
  • Sex in a Vehicle
  • Kuudere Heroine
Rating 7.00518 Users
Neko-nin exHeart +Plus Nachi Hen
Neko-nin exHeart +Plus Nachi Hen
22%
Tags
  • Catgirl Heroine
  • Kunoichi Heroine
  • Modern Tsundere Heroine
  • Background Moans
  • Sex with Protagonist Only
Rating 6.51398 Users
Uchi no Kanojo
Uchi no Kanojo
22%
Tags
  • Salaryman Protagonist
  • Backlog Jump
  • Ejaculation Forewarner
  • Deredere Heroine
  • Slice of Life
Rating 6.75269 Users
Loca Love - Jinja x Senpai
Loca Love - Jinja x Senpai
22%
Tags
  • Pillow Talk
  • Shinto Shrine
  • Pure Love Story
  • Ear-Cleaning
  • Unlockable Concept Art
Rating 6.71303 Users
Neko-nin exHeart
Neko-nin exHeart
22%
Tags
  • Sex Scene Recollection
  • Interracial/interspecies Romance
  • Kunoichi Heroine
  • Catgirl Heroine
  • Shimaidon Ending
Rating 6.39826 Users
Neko-nin exHeart 2 LOVE +PLUS
Neko-nin exHeart 2 LOVE +PLUS
21%
Tags
  • Sex Scene Recollection
  • Catgirl Heroine
  • Kunoichi Heroine
  • Rabbitgirl Heroine
  • Clumsy Heroine
Rating 6.81231 Users
Neko-nin exHeart +Plus Saiha Hen
Neko-nin exHeart +Plus Saiha Hen
21%
Tags
  • Kunoichi Heroine
  • Kuudere Heroine
  • Background Moans
  • Protagonist's Childhood Friend as a Heroine
  • Sex with Protagonist Only
Rating 6.53396 Users
Island Diary
Island Diary
21%
Tags
  • Stranded
  • Harem Ending with Theme
  • Polyamory
  • Kemonomimi Heroine
  • Fictional Modern Day Japanese Island
Rating 6.63283 Users
Honey*Honey*Honey!
Honey*Honey*Honey!
20%
Tags
  • Unlockable Sexual Content
  • Sex in Karaoke Box
  • Early Branching Plot
  • Varied Title Screens
  • Nude Filter
Rating 6.40302 Users
Kemono Musume no Sodatekata
Kemono Musume no Sodatekata
20%
Tags
  • No Common Sense Heroine
  • Kemonomimi Heroine
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Fictional Modern Day Japanese Countryside
  • Only Good Endings
Rating 6.88672 Users
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
Koiyasumi ~Yuudachi ni Nureta Osananajimi~
20%
Tags
  • Countryside
  • Rain
  • Grandmother Support Character
  • Mischievous Heroine
  • Deredere Heroine
Rating 6.8996 Users
DraPri Guu-ta-life
DraPri Guu-ta-life
19%
Tags
  • NEET Protagonist
  • Dragon Heroine
  • Muted Obscenities
  • Comedic Love Triangle
  • Poor Protagonist
Rating 6.27505 Users
HarmonEy
HarmonEy
19%
Tags
  • Protagonist's Wife as a Heroine
  • Ejaculation Forewarner
  • Heroine with Pre-story Virginity Loss to the Protagonist
  • Salaryman Protagonist
  • Bonus Side Stories
Rating 7.10164 Users

NinNinDays 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 (44 total)

NameScoreImportanceWeight
No Common Sense Heroine3.002.296.87
Kunoichi Heroine3.002.196.58
Part-time Job2.502.235.58
Highly Animated Sprites3.001.865.58
Sudden Girlfriend Appearance2.002.725.44
No "Keep Voice on Click" Option2.502.085.21
Modern Day Tokyo2.002.304.59
Clumsy Heroine2.002.134.26
Slice of Life2.671.574.19
Panchira2.002.064.13
Domicile2.002.044.07
Backlog Jump2.001.953.90
Apartment Building1.502.473.71
Lip Sync2.001.833.66
Short Sexual Scenes2.001.833.65
Energetic Heroine2.001.813.62
Airhead Heroine2.001.783.57
Linear Plot2.501.383.45
Under the Same Roof2.671.273.40
Protagonist as the Only Male1.671.993.33
Legwear Footjob2.001.623.24
Ponytail Heroine2.001.412.81
One True End2.001.392.77
Single Footjob2.001.382.75
Sex with Protagonist Only2.331.132.63
Adult Protagonist2.501.032.57
Single Handjob2.001.252.51
Romance2.670.902.39
Bathroom Sex2.001.192.38
Autumn1.002.362.36
Gentle Protagonist1.002.342.34
Only a Single Heroine2.251.022.30
Dogs1.002.172.17
Only Virgin Heroines2.001.082.17
Sexual Fantasizing1.001.971.97
Only One Bad Ending1.001.941.94
Nameable Protagonist2.000.911.83
Heroine with Big Breasts2.000.851.71
Defloration2.000.761.52
Missionary Position1.500.941.41
Multiple Endings2.000.671.34
Few Choices1.001.341.34
Bad Ending(s)0.751.200.90
ADV2.670.150.39

Traits (19 total)

NameCharactersImportanceWeight
Ninja Suit Clothes12.561.78
Bodysponge Engages in (Sexual)12.381.65
Ninja Role12.241.56
Clumsy Personality11.931.34
Part-time Worker Role11.901.32
Nameable Role11.781.24
Scarf Clothes11.781.23
Hair Flower Clothes11.771.22
Footjob Engages in (Sexual)11.721.19
Sex with Protagonist Only Engages in (Sexual)11.681.16
Medium Breasts Body11.521.05
Cooking Engages in11.420.98
Handjob Engages in (Sexual)11.160.80
Missionary Subject of (Sexual)11.120.77
Quickie Fix Subject of (Sexual)11.080.75
Amber Eyes11.030.71
Virgin Sex Engages in (Sexual)10.850.59
Blowjob Engages in (Sexual)10.760.53
Brown Hair10.680.47