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Summary

It's summer vacation, and Kouji was asked by his uncle to take care of his house and daughter Mizuki while he's on a trip. All alone with his beloved cousin, Kouji was certain something good would happen... A small incident leads to a lovey-dovey life with Mizuki-chan.

Onii-chan Daisuki! has not appeared in our Steam sample enough to calculate it's similar novels... sorry!
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Onii-chan Daisuki! 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.

Onii-chan Daisuki! 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 (19 total)

NameScoreImportanceWeight
Only Protagonist's Relatives as Heroine(s)2.002.565.12
Straight Lolicon3.001.504.51
Heroine with Sport Bloomers2.002.094.18
Only Younger Heroines2.001.943.88
Only Loli Heroines2.001.783.56
Lolicon2.001.743.47
Handjob2.001.513.03
Vaginal Masturbation2.001.362.72
Imouto-type Heroine1.501.752.62
Vaginal Fingering2.001.252.50
Blowjob2.001.122.25
Only Virgin Heroines2.001.082.17
Linear Plot1.501.382.06
Only a Single Heroine2.001.012.03
Missionary Position2.000.941.88
Sitting Sex1.501.061.59
Defloration2.000.761.52
Loli Heroine1.001.191.19
ADV2.000.140.29

Traits (21 total)

NameCharactersImportanceWeight
Imouto Act Role12.591.79
Flat Chest Body12.081.44
One Piece Swimsuit Clothes11.921.33
Cousin Role11.881.30
String Ribbon Tie Clothes11.821.26
Sport Bloomers Clothes11.721.19
Garnet Eyes11.661.15
Clothing with Ribbons Clothes11.581.10
Blunt Bangs Hair11.400.97
Kid Body11.370.95
Pink Hair11.330.92
T-shirt Clothes11.310.91
Dress Clothes11.250.87
Ribbon Hair Tie Clothes11.190.83
Twin Tails Hair11.130.78
Tareme Eyes11.110.77
Straight Hair10.940.65
Blowjob Engages in (Sexual)10.760.53
Long Hair10.750.52
Slim Body10.580.40
Pale Body10.370.25