Kimi wa Egao no Satsujinki

"Is it wrong to kill a villain whom the law can’t punish?" Rintarou Saotome, a high school boy with the strange ability to see the final moments of others’ deaths. When Rintarou was just a child, the first death he witnessed was that of his beloved mother. Since then, he’s seen countless deaths, hundreds of them, and as a result, his heart became worn out. He began avoiding others and led a life of solitude. However, one day, a cheerful transfer student, Yumeno Sakurako, appears before him. But with his ability, Rintarou soon learns the truth. He discovers her other face. A boy who can see death × a girl who’s a killer. A psychological romantic comedy!! https://www.cmoa.jp/title/337429/