Kyoukai Senjou no Horizon - Volume 7B, Chapter 34: Round Girl at the Exit

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

In her previous life, Gu Tong was blind to people's true natures, and died unjustly, becoming the number one venomous woman scorned by all.After her rebirth, Gu Tong tore apart her cousin with her bare hands, shattered the mistress on her chest, and stewed the scum in an iron pot, becoming the first Doctor who brought aid to the world; none who owed her could escape.Her happy and perfect new life officially began, and Gu Tong shouted her loud slogan, “Kiss, hug, lift high, husband, let's have a baby, oh yeah.”

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.