Kyoshiro's little sister Ayaka was a popular-selling idol. As siblings they were once close, but fame had turned her cold. One night Kyoshiro was lounging around the living room where he found a remote control. It didn't go to any appliances in the house. When he clicked it, Ayaka walked into the living room in her underwear. She was sleepwalking. No... she was being controlled. It was too hot. Kyoshiro lose his grip on reason for a chance to touch her... Sleep sex, secrect backstage ecchi, morning paizuri blowjob, school rooftop sex, etc..... The forbidden SEX DIARY of idol little sister and her brother, in playable ADV format! [From DLsite English]
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Exotic! Imouto Nikki has not yet been read by enough users to calculate it's similar novels... sorry!
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Exotic! Imouto Nikki 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.
| Name | Score | Importance | Weight |
|---|---|---|---|
| Brother/Sister Incest | 3.00 | 1.92 | 5.77 |
| Flat Tints Only | 3.00 | 1.60 | 4.80 |
| Unavoidable Heroine Rape by the Protagonist | 2.00 | 2.38 | 4.75 |
| Only Blood-related Heroines | 2.00 | 2.10 | 4.20 |
| Only Protagonist's Sisters as Heroine(s) | 2.00 | 2.00 | 4.00 |
| Only Younger Heroines | 2.00 | 1.93 | 3.86 |
| Pregnancy | 2.00 | 1.51 | 3.02 |
| Pregnant Sex | 2.00 | 1.16 | 2.33 |
| Sex with Protagonist Only | 2.00 | 1.12 | 2.24 |
| Idol Heroine | 1.00 | 1.80 | 1.80 |
| Defloration | 2.00 | 0.75 | 1.50 |
| Sexual Content | 2.00 | 0.61 | 1.23 |