Higeki no Genkyou to Naru Saikyou Gedou Last Boss Joou wa Tami no Tame ni Tsukushimasu.

Other name: The Most Heretical Last Boss Queen: From Villainess to Savior; The Most Heretical Last Boss Queen Who Will Become the Source of Tragedy Will Devote Herself for the Sake of the People, Lastame; 悲劇の元凶となる最強外道ラスボス女王は民の為に尽くします。

Description: Pride Royal Ivy is the final boss and all-around scum in the otome game To a Beam of Light With You. She committed innumerable crimes—from enslaving her adopted brother in a soul-binding contract to abusing her position against the servants in the household. In short, she is a villain of pure evil.

A normal high school student in Japan reincarnates into the eight-year-old body of Princess Pride. The first order of business: survive to see another day. Using her cheat-like abilities, she resolves to save her father, rescue the kingdom, and become a kind and benevolent ruler. And so, Pride resolves to change her fate, no matter what it takes!