Yakuza Reincarnation

Ninkyou Tensei: Isekai no Yakuza Hime, 任侠転生－異世界のヤクザ姫－, 任俠轉生 —異世界的黑道公主—, Героизм перерождённого: Принцесса якудза в другом мире, Yakuza Reincarnation: Yakuza Princess of Another World, Chivalrous Reincarnation: Otherworld Mobster Princess

An old school yakuza, Nagamasa Ryumatsu, ended up losing his life due to certain circumstances. But, when he awakened to a strange sort of scenery he had never seen before, he found that he had somehow changed into a beautiful girl?!