Masamune likes his older sister, Minaho. But she has gone abroad to study soon after he entered a high school. He really likes her, her smile and her big and soft breasts.... "I wanna touch them!" He always feels down at the classroom and Momoko, his old friend, tries to cheer him up. At first, he doesn't see Momoko as a girl but when he takes a good look at her, he finds out that her breasts have been getting bigger since she entered the high school. One day, a fill-in teacher comes to his class. It is his older sister, Minaho! His life full of H starts... [From Eroge Shop]
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| Name | Score | Importance | Weight |
|---|---|---|---|
| Glasses Option | 2.00 | 2.50 | 4.99 |
| Comedic Love Triangle | 2.00 | 2.36 | 4.72 |
| Blood-related Brother/Sister Incest | 3.00 | 1.48 | 4.43 |
| Class President Heroine | 2.00 | 2.16 | 4.31 |
| Oneesan-type Heroine | 2.00 | 1.81 | 3.62 |
| Sex in a Classroom | 2.00 | 1.63 | 3.26 |
| Big Breast Sizes Heroine | 2.50 | 1.27 | 3.18 |
| Ejaculation Choice | 2.00 | 1.53 | 3.05 |
| School | 2.00 | 1.50 | 2.99 |
| Masturbation | 2.00 | 1.46 | 2.92 |
| Kissing Scene | 2.00 | 1.44 | 2.88 |
| Teacher Heroine | 2.00 | 1.36 | 2.71 |
| Boobjob | 2.00 | 1.29 | 2.58 |
| Perverted Friend | 1.00 | 2.33 | 2.33 |
| Adult Heroine | 2.00 | 1.13 | 2.27 |
| Heroine with Glasses | 2.00 | 1.11 | 2.21 |
| Blowjob | 2.00 | 1.09 | 2.17 |
| Group Sex of One Male and Several Females | 2.00 | 0.90 | 1.80 |
| High School Student Heroine | 2.00 | 0.84 | 1.69 |
| Doggy Style | 2.00 | 0.79 | 1.59 |
| Defloration | 2.00 | 0.75 | 1.49 |
| Nukige | 2.00 | 0.64 | 1.29 |
| Male Protagonist | 2.00 | 0.30 | 0.60 |
| Name | Characters | Importance | Weight |
|---|---|---|---|
| Twin Boobjob Engages in (Sexual) | 2 | 1.76 | 1.94 |
| Masturbation Engages in (Sexual) | 3 | 1.37 | 1.90 |
| Nipple Sucking Engages in (Sexual) | 2 | 1.71 | 1.88 |
| Sport Bloomers Clothes | 2 | 1.71 | 1.87 |
| Twin Boobjob Subject of (Sexual) | 1 | 2.67 | 1.85 |
| Necktie Clothes | 4 | 1.11 | 1.79 |
| Sex in Classroom Engages in (Sexual) | 2 | 1.61 | 1.77 |
| Bunny Dress Clothes | 1 | 2.46 | 1.71 |
| Group Sex of One Male and Several Females Engages in (Sexual) | 3 | 1.19 | 1.65 |
| Principal Role | 1 | 2.36 | 1.64 |
| Incest Engages in (Sexual) | 2 | 1.47 | 1.62 |
| Sex on Roof Engages in (Sexual) | 1 | 2.30 | 1.59 |
| Class President Role | 1 | 2.27 | 1.58 |
| Knee-high Socks Clothes | 2 | 1.37 | 1.51 |
| Wrinkles Body | 1 | 2.14 | 1.49 |
| Pubic Hair Hair | 2 | 1.34 | 1.47 |
| T-shirt Clothes | 2 | 1.32 | 1.45 |
| Towel Clothes | 1 | 2.02 | 1.40 |
| Sixty-nine Engages in (Sexual) | 2 | 1.25 | 1.38 |
| Classmate Role | 2 | 1.23 | 1.35 |
| Beard Hair | 1 | 1.90 | 1.32 |
| Boobjob Subject of (Sexual) | 1 | 1.87 | 1.30 |
| Handjob Engages in (Sexual) | 2 | 1.16 | 1.27 |
| Short Shorts Clothes | 1 | 1.79 | 1.24 |
| Handjob Subject of (Sexual) | 1 | 1.76 | 1.22 |
| Skirt Suit Clothes | 1 | 1.74 | 1.21 |
| Cowgirl Engages in (Sexual) | 1 | 1.72 | 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 |
| Father Role | 1 | 1.68 | 1.16 |
| Nail Polish Body | 1 | 1.66 | 1.15 |
| Amber Eyes | 2 | 1.02 | 1.12 |
| Cunnilingus Engages in (Sexual) | 1 | 1.56 | 1.08 |
| Older Sister Role | 1 | 1.55 | 1.08 |
| Teacher Role | 1 | 1.55 | 1.07 |
| Blowjob Subject of (Sexual) | 1 | 1.53 | 1.06 |
| Cowgirl Subject of (Sexual) | 2 | 0.95 | 1.05 |
| Big Breast Sizes Body | 1 | 1.47 | 1.02 |
| Shoulder-length Hair | 2 | 0.91 | 1.00 |
| Suit Clothes | 1 | 1.44 | 1.00 |
| Tank Top Clothes | 1 | 1.43 | 0.99 |
| Black Eyes | 1 | 1.43 | 0.99 |
| Pantyhose Clothes | 1 | 1.42 | 0.98 |
| Blond Hair | 2 | 0.88 | 0.97 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.39 | 0.96 |
| Grey Hair | 1 | 1.39 | 0.96 |
| Female Ejaculation Engages in (Sexual) | 1 | 1.38 | 0.96 |
| Friend Role | 1 | 1.21 | 0.84 |
| Blowjob Engages in (Sexual) | 2 | 0.76 | 0.84 |
| Butterfly Subject of (Sexual) | 1 | 1.17 | 0.81 |
| Cunnilingus Subject of (Sexual) | 1 | 1.17 | 0.81 |
| School Uniform Clothes | 2 | 0.74 | 0.81 |
| Shirt Clothes | 1 | 1.15 | 0.80 |
| Missionary Subject of (Sexual) | 1 | 1.11 | 0.77 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Brown Hair | 2 | 0.68 | 0.75 |
| Quickie Fix Subject of (Sexual) | 1 | 1.08 | 0.75 |
| Parted to Side Hair | 1 | 1.07 | 0.74 |
| Miniskirt Clothes | 1 | 1.07 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.05 | 0.73 |
| Green Eyes | 1 | 1.01 | 0.70 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Short Hair | 2 | 0.61 | 0.67 |
| Doggy Style Subject of (Sexual) | 1 | 0.92 | 0.64 |
| Brown Eyes | 1 | 0.90 | 0.62 |
| Virgin Sex Engages in (Sexual) | 1 | 0.84 | 0.58 |
| Black Hair | 1 | 0.81 | 0.56 |