raw 第三次性徴期、大塚くん！ raw 第01巻 [Daisanji seichoki otsukakun! vol 01]

In 1987, Tsuyoshi Otsuka fainted in a freak accident. Twenty-six years later, he miraculously wakes up. Now it's time for Otsuka to go back to school where he plans to live his youth with full force! There's just one problem: on the outside, everyone sees a 40-Year-Old man, while on the inside, he's still just a 14-Year-Old boy.(Source: Gangan Online)