Akuyaku Reijou ni Natta Uchi no Ojou-sama ga Yakuza Reijou Datta Kudan.

is a Japanese light novel series written by Daisuke Haneda, with illustrations by Yasuyuki Syuri. The series began publication on August 17, 2020 by ASCII Media Works under their Dengeki no Shin Bungei publishing imprint.

Synopsis
"Did you hear? I told you to drop your finger."

That day, Kiriha Reine of "Villain Lady" was supposed to be condemned by her fiancée prince. However, the unexpected response made the situation unpredictable. Kiriha, the yakuza's female leader, had reincarnated on the girl's body. I don't live up to my promises and don't allow me to bend. An exhilarating story of Yakuza daughter Kiriha smashing the ruin flag, opening here!