The search results strongly suggest you're likely referring to Yoshino Somei, the protagonist of the popular anime and manga series Yakuza Fiancé: Raise wa Tanin ga Ii.

Political Engagement: Her "lifestyle" changes drastically when her grandfather arranges a marriage with Kirishima Miyama to unite the rival Kansai and Kanto syndicates.

of organized crime life, including intense scenes like Yoshino selling her own kidney for 4 million yen. Mature Themes:

: It may refer to specific characters from anime or video games (such as Yoshino from Date A Live

Independence & Resilience: Unlike a typical damsel in distress, Yoshino is portrayed as fiercely independent and adaptable. In a famous plot point illustrating her extreme resolve, she once sold her own kidney for 4 million yen to settle a score and confront her fiancé, Kirishima.