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 | 3.30 | 2.29 |
| Sexual Slavery (Consensual) Subject of (Sexual) | 1 | 2.80 | 1.94 |
| Cheerleading Uniform Clothes | 1 | 2.64 | 1.83 |
| Sling Bikini Clothes | 1 | 2.62 | 1.82 |
| Nephew Role | 1 | 2.59 | 1.79 |
| Pubic Hair Shaving Subject of (Sexual) | 1 | 2.58 | 1.79 |
| Mole Body | 2 | 1.62 | 1.78 |
| Office Lady Role | 1 | 2.49 | 1.72 |
| Trench Coat Clothes | 1 | 2.45 | 1.70 |
| Rape by Protagonist Only Subject of (Sexual) | 1 | 2.43 | 1.69 |
| Aunt Role | 1 | 2.39 | 1.66 |
| Reverse Missionary Engages in (Sexual) | 1 | 2.38 | 1.65 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.62 |
| Tominagi Engages in (Sexual) | 1 | 2.14 | 1.48 |
| Pubic Hair Hair | 2 | 1.34 | 1.47 |
| Hidden Vibrator Subject of (Sexual) | 1 | 2.11 | 1.47 |
| Petplay Subject of (Sexual) | 1 | 2.10 | 1.45 |
| Being Drugged Subject of | 1 | 2.06 | 1.43 |
| Facesitting Engages in (Sexual) | 1 | 2.00 | 1.38 |
| Sex with Others Engages in (Sexual) | 1 | 1.99 | 1.38 |
| Sixty-nine Engages in (Sexual) | 2 | 1.25 | 1.38 |
| Trousers Clothes | 2 | 1.21 | 1.33 |
| Standing Sex Engages in (Sexual) | 1 | 1.88 | 1.31 |
| Naked Apron Clothes | 1 | 1.87 | 1.29 |
| Sitting Sex Engages in (Sexual) | 1 | 1.83 | 1.27 |
| Shirt Clothes | 2 | 1.15 | 1.27 |
| Son Role | 1 | 1.83 | 1.27 |
| Necktie Clothes | 2 | 1.11 | 1.22 |
| Multiple Penetration Subject of (Sexual) | 1 | 1.75 | 1.21 |
| Skirt Suit Clothes | 1 | 1.74 | 1.21 |
| Reverse Missionary Subject of (Sexual) | 1 | 1.73 | 1.20 |
| Cowgirl Engages in (Sexual) | 1 | 1.72 | 1.19 |
| Sex with Protagonist Only Engages in (Sexual) | 1 | 1.69 | 1.17 |
| Shorts Clothes | 1 | 1.67 | 1.16 |
| Rope Bondage Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Amber Eyes | 2 | 1.02 | 1.12 |
| Pink Eyes | 1 | 1.61 | 1.12 |
| Garter Belt Stockings Clothes | 1 | 1.61 | 1.11 |
| Apron Clothes | 1 | 1.58 | 1.09 |
| Cunnilingus Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Blowjob Subject of (Sexual) | 1 | 1.53 | 1.06 |
| Cowgirl Subject of (Sexual) | 2 | 0.95 | 1.05 |
| Sailor School Uniform Clothes | 1 | 1.48 | 1.03 |
| Big Breast Sizes Body | 1 | 1.47 | 1.02 |
| Mother Role | 1 | 1.47 | 1.02 |
| Pissing Engages in (Sexual) | 1 | 1.46 | 1.01 |
| Bathroom Sex Engages in (Sexual) | 1 | 1.39 | 0.97 |
| Female Ejaculation Engages in (Sexual) | 1 | 1.38 | 0.96 |
| Masturbation Engages in (Sexual) | 1 | 1.37 | 0.95 |
| Tominagi Subject of (Sexual) | 1 | 1.36 | 0.94 |
| Ahegao Engages in (Sexual) | 1 | 1.33 | 0.92 |
| Skirt Clothes | 1 | 1.33 | 0.92 |
| T-shirt Clothes | 1 | 1.32 | 0.91 |
| Ahoge Hair | 1 | 1.31 | 0.91 |
| Black Hair | 2 | 0.81 | 0.89 |
| Sex in Public Places Engages in (Sexual) | 1 | 1.26 | 0.87 |
| Friend Role | 1 | 1.21 | 0.84 |
| Short Hair | 3 | 0.61 | 0.84 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.82 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 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 | 1.11 | 0.77 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Boobjob Engages in (Sexual) | 1 | 1.06 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.05 | 0.73 |
| Violet Eyes | 1 | 1.04 | 0.72 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Virgin Sex Engages in (Sexual) | 1 | 0.84 | 0.58 |
| Blowjob Engages in (Sexual) | 1 | 0.76 | 0.53 |
| Long Hair | 1 | 0.75 | 0.52 |