DxD: Matsuda? - Chapter 46: Grayfia, Meet Mom & Dad?

A tale about the former leader of a special organization that served under royalty, now leaving his past life behind and unintentionally getting involved with the martial world.

A long life, starting from Jin Yiwei.

Completed this million-word boutique: Longevity begins with all true. Quality Assurance!

- Description from novelbuddy

Office worker Leon is reincarnated into a particularly punishing dating sim video game, where women reign supreme and only beautiful men have a seat at the table. But Leon has a secret weapon: he remembers everything from his past life, which includes a complete playthrough of the very game in which he is now trapped. Watch Leon spark a revolution to change this new world in order to fulfill his ultimate desire…of living a quiet, easy life in the countryside!