No matter how hard he tries, Aihara Takuya is just a weakling. Not only the boys, but the girls pick on him too! His step sister, Natsumi, the president of his school's chemistry club, Mami, and even his childhood friend, Asuka, they all enjoy teasing him. Just when he thinks his life couldn't get any worse, he spills some vials of chemicals while cleaning up his school's chemistry room, splashing some onto his body as well. He looks down to assess the mess, and finds a new pair of breasts sticking out of his chest! He grabs them in disbelief, and discovers that he's been transformed into a girl! And so begins Takuya's hilarious erotic adventure to search for a cure. Along the way he discovers a whole new world of experiences, some welcome and others not. Will he find a way back to normal, or will he be trapped in a girl's body for the rest of his life? [Edited from JAST USA]
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| Name | Characters | Importance | Weight |
|---|---|---|---|
| Sex Change (Male to Female) Subject of | 2 | 2.98 | 3.27 |
| School Science Club Member Role | 2 | 2.95 | 3.24 |
| Schoolmate Role | 4 | 1.91 | 3.07 |
| Vaginal Fingering Engages in (Sexual) | 5 | 1.61 | 2.89 |
| Cunnilingus Engages in (Sexual) | 5 | 1.55 | 2.77 |
| Step Sister Role | 2 | 2.44 | 2.68 |
| Airhead Personality | 3 | 1.92 | 2.66 |
| Sex on Roof Engages in (Sexual) | 2 | 2.29 | 2.51 |
| Sex at School Engages in (Sexual) | 4 | 1.54 | 2.48 |
| School Science Club President Role | 1 | 3.53 | 2.45 |
| Missionary Engages in (Sexual) | 3 | 1.74 | 2.41 |
| Outgoing Personality | 3 | 1.71 | 2.37 |
| Tribadism Engages in (Sexual) | 2 | 2.11 | 2.32 |
| Relaxed Personality | 3 | 1.64 | 2.27 |
| Pervert Personality | 3 | 1.62 | 2.25 |
| Straight Hair | 10 | 0.94 | 2.24 |
| Pleated Skirt Clothes | 4 | 1.39 | 2.24 |
| Lesbian Sex Engages in (Sexual) | 4 | 1.38 | 2.22 |
| Funny Personality | 2 | 2.00 | 2.20 |
| Genderbent Sex Engages in (Sexual) | 1 | 3.10 | 2.15 |
| Shirt Clothes | 5 | 1.16 | 2.07 |
| Standing Sex Engages in (Sexual) | 2 | 1.86 | 2.05 |
| Belt Clothes | 4 | 1.26 | 2.04 |
| Ribbon Tie Clothes | 4 | 1.26 | 2.02 |
| Classmate Role | 4 | 1.23 | 1.98 |
| Foreign Exchange Student Role | 1 | 2.75 | 1.90 |
| Widow's Peak Hair | 1 | 2.74 | 1.90 |
| PE Teacher Role | 1 | 2.74 | 1.90 |
| Step Brother Role | 1 | 2.74 | 1.90 |
| Trousers Clothes | 4 | 1.18 | 1.89 |
| Effeminate Personality | 1 | 2.73 | 1.89 |
| Amber Eyes | 5 | 1.03 | 1.85 |
| Doggy Style Engages in (Sexual) | 2 | 1.68 | 1.85 |
| Shorts Clothes | 2 | 1.68 | 1.84 |
| Curtained Hair | 3 | 1.30 | 1.80 |
| Kouhai Role | 2 | 1.63 | 1.80 |
| Sixty-nine Engages in (Sexual) | 3 | 1.26 | 1.75 |
| Childhood Friend Role | 3 | 1.26 | 1.75 |
| School Nurse Role | 1 | 2.47 | 1.71 |
| Modern Tsundere Personality | 1 | 2.42 | 1.68 |
| High School Student Role | 6 | 0.86 | 1.68 |
| Blue Hair | 3 | 1.20 | 1.66 |
| Facesitting Subject of (Sexual) | 1 | 2.34 | 1.62 |
| Cunnilingus Subject of (Sexual) | 3 | 1.16 | 1.61 |
| Spiky Bangs Hair | 4 | 0.99 | 1.60 |
| Distrustful Personality | 1 | 2.28 | 1.58 |
| Eccentric Personality | 1 | 2.28 | 1.58 |
| Foreigner Role | 1 | 2.27 | 1.58 |
| Scientist Role | 1 | 2.27 | 1.58 |
| Earrings Clothes | 2 | 1.42 | 1.56 |
| Hair Tie Clothes | 2 | 1.40 | 1.54 |
| Tank Top Clothes | 2 | 1.40 | 1.53 |
| Hosome Eyes | 2 | 1.37 | 1.50 |
| Quickie Fix Subject of (Sexual) | 3 | 1.08 | 1.50 |
| Teal Hair | 1 | 2.16 | 1.50 |
| Vaginal Fingering Subject of (Sexual) | 3 | 1.08 | 1.49 |
| School Uniform Clothes | 6 | 0.77 | 1.49 |
| Accident Subject of | 1 | 2.15 | 1.49 |
| Wrinkles Body | 1 | 2.10 | 1.46 |
| Transfer Student Role | 1 | 2.03 | 1.41 |
| Butterfly Engages in (Sexual) | 1 | 2.02 | 1.40 |
| Teen Body | 8 | 0.62 | 1.37 |
| Facesitting Engages in (Sexual) | 1 | 1.96 | 1.36 |
| Clumsy Personality | 1 | 1.94 | 1.34 |
| One Piece Swimsuit Clothes | 1 | 1.92 | 1.33 |
| Slim Body | 9 | 0.57 | 1.32 |
| Younger Brother Role | 1 | 1.90 | 1.32 |
| Quickie Fix Engages in (Sexual) | 1 | 1.88 | 1.30 |
| Boobjob Subject of (Sexual) | 1 | 1.86 | 1.29 |
| Boyfriend Role | 1 | 1.85 | 1.28 |
| Bob Cut Hair | 1 | 1.83 | 1.27 |
| Homosexual Role | 1 | 1.83 | 1.27 |
| Strict Personality | 1 | 1.83 | 1.27 |
| Short Hair | 7 | 0.61 | 1.26 |
| Brown Eyes | 3 | 0.90 | 1.25 |
| Lab Coat Clothes | 1 | 1.80 | 1.24 |
| Missionary Subject of (Sexual) | 2 | 1.12 | 1.23 |
| Vaginal/Anal Sexual Toys Subject of (Sexual) | 1 | 1.77 | 1.23 |
| Ponytail Hair | 2 | 1.10 | 1.21 |
| Teal Eyes | 1 | 1.72 | 1.19 |
| Mischievous Personality | 1 | 1.72 | 1.19 |
| Sport Bloomers Clothes | 1 | 1.72 | 1.19 |
| Cowgirl Engages in (Sexual) | 1 | 1.71 | 1.19 |
| Reserved Personality | 1 | 1.71 | 1.18 |
| Carefree Personality | 1 | 1.69 | 1.17 |
| Violet Eyes | 2 | 1.05 | 1.15 |
| Popular Role | 1 | 1.64 | 1.14 |
| Senpai Role | 1 | 1.62 | 1.12 |
| Shy Personality | 1 | 1.62 | 1.12 |
| Bondage Sex Subject of (Sexual) | 1 | 1.59 | 1.10 |
| Teacher Role | 1 | 1.56 | 1.08 |
| Older Sister Role | 1 | 1.56 | 1.08 |
| Mole Body | 1 | 1.55 | 1.08 |
| Group Sex Engages in (Sexual) | 1 | 1.55 | 1.07 |
| Blowjob Engages in (Sexual) | 3 | 0.76 | 1.06 |
| Girlfriend Role | 1 | 1.53 | 1.06 |
| Blowjob Subject of (Sexual) | 1 | 1.52 | 1.05 |
| Doggy Style Subject of (Sexual) | 2 | 0.92 | 1.02 |
| Shoulder-length Hair | 2 | 0.92 | 1.01 |
| Smart Personality | 1 | 1.45 | 1.01 |
| Younger Sister Role | 1 | 1.45 | 1.00 |
| Teasing Engages in | 1 | 1.43 | 0.99 |
| Blond Hair | 2 | 0.89 | 0.98 |
| Masturbation Engages in (Sexual) | 1 | 1.41 | 0.97 |
| Blunt Bangs Hair | 1 | 1.39 | 0.97 |
| Nipple Sucking Subject of (Sexual) | 1 | 1.37 | 0.95 |
| Virgin Sex Engages in (Sexual) | 2 | 0.85 | 0.94 |
| Wavy Hair | 1 | 1.35 | 0.94 |
| Adult Body | 1 | 1.33 | 0.92 |
| Red Hair | 1 | 1.32 | 0.92 |
| Pale Body | 11 | 0.37 | 0.91 |
| Waist Length+ Hair | 2 | 0.82 | 0.90 |
| Black Hair | 2 | 0.80 | 0.88 |
| Friendly Personality | 1 | 1.21 | 0.84 |
| Violet Hair | 1 | 1.20 | 0.83 |
| Young-adult Body | 2 | 0.75 | 0.83 |
| Standing Sex Subject of (Sexual) | 1 | 1.18 | 0.81 |
| Tareme Eyes | 1 | 1.11 | 0.77 |
| Brown Hair | 2 | 0.69 | 0.75 |
| Glasses Clothes | 1 | 1.08 | 0.75 |
| Boobjob Engages in (Sexual) | 1 | 1.07 | 0.74 |
| Sitting Sex Subject of (Sexual) | 1 | 1.06 | 0.74 |
| Miniskirt Clothes | 1 | 1.06 | 0.74 |
| Kind Personality | 1 | 1.02 | 0.71 |
| Sidehair Hair | 1 | 0.98 | 0.68 |
| Cowgirl Subject of (Sexual) | 1 | 0.96 | 0.66 |
| Blue Eyes | 1 | 0.81 | 0.56 |
| 10 | 0.00 | 0.00 | |
| 1 | 0.00 | 0.00 |