Kusunoki-san wa Koukou Debut ni Shippai shite Iru

Kusunoki-san wa Koukou Debut ni Shippai shite Iru summary: After his traumatic years in junior high school, the ultra-introvert Shizuki Keisuke decides to turn his life around, and gives himself a complete make-over for his high school “debut.“ His new high school life seems promising, as no one is aware of his hidden past...except for one person: Kusunoki Shizuka, who also changed herself in pursuit of a more successful high school life!