Main character's parents go overseas leaving him in charge of his sister for holidays. He wants to cheer his little sister up, but she urges him to fulfill old promise and treat her as an adult. These two weeks before her birthday get painted with the color of lust. [From vndbreview]
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Kyoudai ~Futari~ 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 |
|---|---|---|---|
| Male on Futanari | 2.50 | 2.50 | 6.24 |
| Futanari Heroine | 3.00 | 1.97 | 5.91 |
| Futanari on Futanari | 2.00 | 2.66 | 5.31 |
| School Nurse Support Character | 2.00 | 2.45 | 4.90 |
| Non-blood-related Brother/Sister Incest | 2.00 | 1.75 | 3.51 |
| Sex in Public Places | 2.00 | 1.08 | 2.15 |
| Sexual Content | 2.00 | 0.61 | 1.23 |
| Male Protagonist | 2.00 | 0.30 | 0.60 |
| ADV | 2.00 | 0.14 | 0.29 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Frot Engages in (Sexual) | 2 | 2.71 | 2.98 |
| Futanari Body | 2 | 2.35 | 2.58 |
| Double-ended Dildo Subject of (Sexual) | 2 | 2.10 | 2.31 |
| Mutual Masturbation Engages in (Sexual) | 2 | 1.93 | 2.12 |
| School Archery Club Member Role | 1 | 2.89 | 2.01 |
| Handjob Subject of (Sexual) | 2 | 1.76 | 1.93 |
| Masturbation Engages in (Sexual) | 3 | 1.37 | 1.90 |
| Wooden Horse Subject of (Sexual) | 1 | 2.50 | 1.73 |
| School Nurse Role | 1 | 2.46 | 1.70 |
| Spit-roast Engages in (Sexual) | 1 | 2.45 | 1.70 |
| Blowjob Subject of (Sexual) | 2 | 1.53 | 1.68 |
| Wax Play Subject of (Sexual) | 1 | 2.35 | 1.63 |
| Twin Blowjob Engages in (Sexual) | 2 | 1.44 | 1.58 |
| Anal Plug Tail Subject of (Sexual) | 1 | 2.28 | 1.58 |
| Class President Role | 1 | 2.27 | 1.58 |
| Spoons Engages in (Sexual) | 1 | 2.23 | 1.55 |
| Double Penetration (Group Sex) Engages in (Sexual) | 1 | 2.18 | 1.51 |
| Non-blood-related Sister Role | 1 | 2.17 | 1.50 |
| Sundress Clothes | 1 | 2.13 | 1.47 |
| Shimapan Clothes | 1 | 2.12 | 1.47 |
| Petplay Subject of (Sexual) | 1 | 2.10 | 1.45 |
| Waitstaff Uniform Clothes | 1 | 2.06 | 1.43 |
| Anilingus Subject of (Sexual) | 1 | 2.05 | 1.42 |
| Anal Beads Subject of (Sexual) | 1 | 2.01 | 1.39 |
| Bisexual Role | 1 | 1.99 | 1.38 |
| Sixty-nine Engages in (Sexual) | 2 | 1.25 | 1.38 |
| Masturbation in front of an Audience Engages in (Sexual) | 1 | 1.92 | 1.33 |
| Cowgirl Subject of (Sexual) | 3 | 0.95 | 1.32 |
| Butterfly Subject of (Sexual) | 2 | 1.17 | 1.29 |
| Twin Braids Hair | 1 | 1.85 | 1.29 |
| Doggy Style Subject of (Sexual) | 3 | 0.92 | 1.28 |
| Sitting Sex Engages in (Sexual) | 1 | 1.83 | 1.27 |
| Waitstaff Role | 1 | 1.81 | 1.25 |
| Lab Coat Clothes | 1 | 1.79 | 1.24 |
| Missionary Subject of (Sexual) | 2 | 1.11 | 1.22 |
| Necktie Clothes | 2 | 1.11 | 1.22 |
| Missionary Engages in (Sexual) | 1 | 1.75 | 1.21 |
| Spit-roast Subject of (Sexual) | 1 | 1.74 | 1.21 |
| Teal Eyes | 1 | 1.72 | 1.19 |
| Hoodie Clothes | 1 | 1.71 | 1.19 |
| Doggy Style Engages in (Sexual) | 1 | 1.70 | 1.18 |
| Boobjob Engages in (Sexual) | 2 | 1.06 | 1.17 |
| High School Student Role | 3 | 0.84 | 1.16 |
| Rope Bondage Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Sitting Sex Subject of (Sexual) | 2 | 1.05 | 1.16 |
| Spoons Subject of (Sexual) | 1 | 1.67 | 1.16 |
| Double Penetration (Group Sex) Subject of (Sexual) | 1 | 1.64 | 1.14 |
| Reverse Cowgirl Subject of (Sexual) | 1 | 1.64 | 1.14 |
| Sweater Clothes | 1 | 1.64 | 1.14 |
| Mole Body | 1 | 1.62 | 1.12 |
| Kouhai Role | 1 | 1.62 | 1.12 |
| Garter Belt Stockings Clothes | 1 | 1.61 | 1.11 |
| Jeans Clothes | 1 | 1.58 | 1.09 |
| Makeup Body | 1 | 1.57 | 1.09 |
| Bondage Sex Subject of (Sexual) | 1 | 1.56 | 1.08 |
| Choker Clothes | 1 | 1.51 | 1.05 |
| Maid's Dress Clothes | 1 | 1.51 | 1.05 |
| Sailor School Uniform Clothes | 1 | 1.48 | 1.03 |
| Blouse Clothes | 1 | 1.48 | 1.03 |
| Big Breast Sizes Body | 1 | 1.47 | 1.02 |
| School Uniform Clothes | 3 | 0.74 | 1.02 |
| Shoulder-length Hair | 2 | 0.91 | 1.00 |
| Headband Clothes | 1 | 1.44 | 1.00 |
| Black Eyes | 1 | 1.43 | 0.99 |
| Cooking Engages in | 1 | 1.41 | 0.98 |
| Bathroom Sex Engages in (Sexual) | 1 | 1.39 | 0.97 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.39 | 0.96 |
| Knee-high Socks Clothes | 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 |
| Black Hair | 2 | 0.81 | 0.89 |
| Parted in Middle Hair | 1 | 1.25 | 0.87 |
| Classmate Role | 1 | 1.23 | 0.85 |
| Blowjob Engages in (Sexual) | 2 | 0.76 | 0.84 |
| Long Hair | 2 | 0.75 | 0.83 |
| Violet Hair | 1 | 1.19 | 0.82 |
| Anal Sex Subject of (Sexual) | 1 | 1.19 | 0.82 |
| Ribbon Hair Tie Clothes | 1 | 1.18 | 0.82 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Handjob Engages in (Sexual) | 1 | 1.16 | 0.80 |
| Twin Tails Hair | 1 | 1.12 | 0.78 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Miniskirt Clothes | 1 | 1.07 | 0.74 |
| Violet Eyes | 1 | 1.04 | 0.72 |
| Thigh-high Stockings Clothes | 1 | 1.03 | 0.72 |
| Spiky Bangs Hair | 1 | 1.01 | 0.70 |
| Brown Eyes | 1 | 0.90 | 0.62 |
| Virgin Sex Engages in (Sexual) | 1 | 0.84 | 0.58 |
| Brown Hair | 1 | 0.68 | 0.47 |