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Summary

The protagonist Onii Tomoyasu is a fairly ordinary college student. However, because of his name he has received a certain nickname since long ago : "Onii-chan". Thanks to that he has been called that way every day by both people younger and older than him ever since elementary school. That's how he's been called "Onii-chan" for 22 years despite having no actual younger sister. And one day, when he turned around after hearing "Onii-chan" once again, he found a sole girl looking at him. The girl (Sakuranomori Fumitsuki) told him she is his half-sister. While our protagonist is still surprised at the sudden appearance of a sister, she continues her story and asks him to come over to their house. She came to convince him to help her sisters. She tells him their father's behavior caused them to become distrustful of males. And when he asked her what he should do in particular, she answered... "Please have sex with them". [Translated from Getchu]

Imouto Chu☆ #01 Sunao Imouto no Shou has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Imouto Chu☆ #01 Sunao Imouto no Shou has not yet been read by enough users to calculate it's similar novels... sorry!
A novel needs atleast 20 votes before it's similarity is calculated.

Imouto Chu☆ #01 Sunao Imouto no Shou 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 (35 total)

NameScoreImportanceWeight
Only Protagonist's Sisters as Heroine(s)2.502.004.99
Only Younger Heroines2.501.944.84
Meaningless Choices2.671.604.28
Only Blood-related Heroines2.002.104.20
Few Choices3.001.344.01
Sexual Innuendo2.001.933.87
Blood-related Brother/Sister Incest2.501.483.70
Under the Same Roof2.671.263.38
Early Sexual Content2.671.223.25
Single Ending2.331.383.22
University Student Protagonist2.001.533.06
Only a Single Heroine2.671.042.77
Sexual Roleplay1.002.342.34
Only Virgin Heroines2.001.072.14
Nukige3.000.641.93
Other Perspectives1.671.131.89
Missionary Position2.000.931.86
Wake-up Sex1.001.831.83
Side Portraits1.501.161.75
Naked Heroine with Apron1.001.651.65
Butterfly1.001.521.52
Anal Toys1.001.371.37
Protagonist's Blood-related Sister as a Heroine0.671.901.27
Sounds of Copulation1.001.271.27
Anal Sex1.001.151.15
Vibrators1.001.141.14
Bondage1.001.091.09
Sixty-nine1.001.061.06
Sitting Sex1.001.051.05
Naked Sprites1.001.051.05
Cunnilingus1.000.920.92
Doggy Style1.000.790.79
Male Protagonist2.500.300.75
Defloration1.000.750.75
ADV2.000.140.29

Traits (54 total)

NameCharactersImportanceWeight
Half-sister Role32.453.39
Hair Flower Clothes21.761.94
Vaginal/Anal Sexual Toys Subject of (Sexual)21.651.81
Half-brother Role12.591.79
Middle Sister Role12.511.74
Puffy Personality12.501.74
Sixty-nine Engages in (Sexual)31.251.73
Kuudere Personality12.341.62
Incest Engages in (Sexual)21.471.62
Nipple Teasers Subject of (Sexual)12.241.55
Female Ejaculation Engages in (Sexual)21.381.52
Masturbation Engages in (Sexual)21.371.51
Knee-high Socks Clothes21.371.50
Anal Beads Subject of (Sexual)12.001.39
Cleaning Engages in11.991.38
Assertive Personality11.971.36
Friendly Personality21.231.36
Cosplay Engages in11.911.32
Fang Body11.881.30
Sexual Blindfold Subject of (Sexual)11.851.28
Pink Rotor Subject of (Sexual)11.831.27
Braid Hair11.781.23
Hair Ribbon Clothes11.771.23
Tareme Eyes21.091.20
Teal Eyes11.721.19
Shy Personality11.621.12
University Student Role11.621.12
Sex in Water Engages in (Sexual)11.561.08
Older Sister Role11.551.08
Pendant Necklace Clothes11.531.06
Energetic Personality11.521.06
Pissing Engages in (Sexual)11.461.01
Younger Sister Role11.441.00
Cooking Engages in11.410.98
Hairpin Clothes11.390.96
Tsurime Eyes11.380.95
Not Sexually Involved Engages in (Sexual)11.360.94
Kid Body11.360.94
Virgin Sex Engages in (Sexual)20.840.92
Dress Clothes11.240.86
Violet Hair11.190.82
School Uniform Clothes20.730.80
Slim Body30.570.79
Kind Personality11.040.72
Violet Eyes11.040.72
Thigh-high Stockings Clothes11.030.72
Teen Body20.610.67
Blond Hair10.880.61
Blue Eyes10.800.55
Waist Length+ Hair10.800.55
Long Hair10.750.52
Pale Body30.370.51
Brown Hair10.680.47
Short Hair10.610.42