Yuya lives with his father and mother. He enjoys his life with Kazuki, his close friend. But one day, Yuya sees his mother, Mizuho, and Kazuki having sex.... Days later, Chihiro, Mizuho's younger sister, visits his house. His evil desire arises and puts some medicine into a coffee he has just served to her.... [From ErogeShop]
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Open Cup Baby-doll Clothes | 1 | 3.29 | 2.28 |
| Sexual Slavery (Consensual) Subject of (Sexual) | 1 | 2.79 | 1.93 |
| Cheerleading Uniform Clothes | 1 | 2.62 | 1.82 |
| Sling Bikini Clothes | 1 | 2.61 | 1.81 |
| Pubic Hair Shaving Subject of (Sexual) | 1 | 2.60 | 1.80 |
| Nephew Role | 1 | 2.55 | 1.77 |
| Mole Body | 2 | 1.58 | 1.74 |
| Office Lady Role | 1 | 2.47 | 1.71 |
| Trench Coat Clothes | 1 | 2.46 | 1.71 |
| Rape by Protagonist Only Subject of (Sexual) | 1 | 2.40 | 1.66 |
| Aunt Role | 1 | 2.37 | 1.64 |
| Reverse Missionary Engages in (Sexual) | 1 | 2.35 | 1.63 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.61 |
| Hidden Vibrator Subject of (Sexual) | 1 | 2.12 | 1.47 |
| Pubic Hair Hair | 2 | 1.34 | 1.47 |
| Tominagi Engages in (Sexual) | 1 | 2.11 | 1.46 |
| Petplay Subject of (Sexual) | 1 | 2.10 | 1.46 |
| Being Drugged Subject of | 1 | 2.06 | 1.43 |
| Sixty-nine Engages in (Sexual) | 2 | 1.26 | 1.38 |
| Sex with Others Engages in (Sexual) | 1 | 1.99 | 1.38 |
| Facesitting Engages in (Sexual) | 1 | 1.97 | 1.37 |
| Trousers Clothes | 2 | 1.19 | 1.30 |
| Naked Apron Clothes | 1 | 1.88 | 1.30 |
| Multiple Penetration Subject of (Sexual) | 1 | 1.87 | 1.29 |
| Standing Sex Engages in (Sexual) | 1 | 1.87 | 1.29 |
| Shirt Clothes | 2 | 1.16 | 1.27 |
| Sitting Sex Engages in (Sexual) | 1 | 1.82 | 1.26 |
| Son Role | 1 | 1.82 | 1.26 |
| Necktie Clothes | 2 | 1.12 | 1.23 |
| Skirt Suit Clothes | 1 | 1.74 | 1.21 |
| Reverse Missionary Subject of (Sexual) | 1 | 1.74 | 1.20 |
| Cowgirl Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Shorts Clothes | 1 | 1.68 | 1.16 |
| Sex with Protagonist Only Engages in (Sexual) | 1 | 1.68 | 1.16 |
| Rope Bondage Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Amber Eyes | 2 | 1.03 | 1.13 |
| Pink Eyes | 1 | 1.62 | 1.12 |
| Garter Belt Stockings Clothes | 1 | 1.61 | 1.12 |
| Apron Clothes | 1 | 1.58 | 1.10 |
| Big Breast Sizes Body | 1 | 1.55 | 1.08 |
| Cunnilingus Engages in (Sexual) | 1 | 1.55 | 1.08 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Cowgirl Subject of (Sexual) | 2 | 0.95 | 1.05 |
| Sailor School Uniform Clothes | 1 | 1.48 | 1.02 |
| Pissing Engages in (Sexual) | 1 | 1.47 | 1.02 |
| Mother Role | 1 | 1.46 | 1.01 |
| Masturbation Engages in (Sexual) | 1 | 1.39 | 0.97 |
| Bathroom Sex Engages in (Sexual) | 1 | 1.39 | 0.96 |
| Female Ejaculation Engages in (Sexual) | 1 | 1.36 | 0.94 |
| Tominagi Subject of (Sexual) | 1 | 1.36 | 0.94 |
| Skirt Clothes | 1 | 1.34 | 0.93 |
| Ahegao Engages in (Sexual) | 1 | 1.32 | 0.92 |
| Ahoge Hair | 1 | 1.32 | 0.92 |
| T-shirt Clothes | 1 | 1.31 | 0.91 |
| Black Hair | 2 | 0.80 | 0.88 |
| Sex in Public Places Engages in (Sexual) | 1 | 1.26 | 0.87 |
| Short Hair | 3 | 0.61 | 0.84 |
| Friend Role | 1 | 1.20 | 0.83 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Cunnilingus Subject of (Sexual) | 1 | 1.16 | 0.81 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Outdoor Sex Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Missionary Subject of (Sexual) | 1 | 1.12 | 0.77 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Boobjob Engages in (Sexual) | 1 | 1.07 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.06 | 0.74 |
| Violet Eyes | 1 | 1.04 | 0.72 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Virgin Sex Engages in (Sexual) | 1 | 0.85 | 0.59 |
| Blowjob Engages in (Sexual) | 1 | 0.76 | 0.53 |
| Long Hair | 1 | 0.75 | 0.52 |