Read Manga Ninkyou Tensei online in English. Also known as Yakuza Reincarnation, Ninkyō Tensei: Isekai no Yakuza Hime, Ninkyou Tensei: Isekai no Yakuzahime, 任侠転生－異世界のヤクザ姫－, and Chivalrous Reincarnation.

Nagamasa Ryumatsu is an old-school yakuza who has lived by a harsh but sincere code: protect your turf, keep civilians out of trouble, and never abandon your principles. After a betrayal cuts his life short, he wakes in a place far removed from Kabukicho, reborn as a young princess in a fantasy world filled with nobles, monsters, and unfamiliar rules.

A softer body does not mean a softer spirit. Ryumatsu brings his underworld grit, stubborn loyalty, and fearless sense of justice into a realm where power is often abused and the weak are easily crushed. What begins as a bizarre reincarnation quickly turns into a rough, surprisingly heartfelt clash between yakuza honor and isekai fantasy.

This series may appeal to readers who enjoy reincarnation fantasy, yakuza action, and unconventional isekai adventure stories.