Jun Yu, a WBA lightweight champion, gets dumped by his girlfriend, then gets hit by a car… and wakes up in a dating simulation game as Yujun Russell, the adopted DAUGHTER of a noble family! The game tells Jun that he can be reincarnated, but only after playing to win over the love of his target characters. Determined to see his ex-girlfriend again, he eagerly accepts the challenge. Will Jun be successful in winning the hearts of his suitors, and manage to return to the world he came from?(Source: LINE Webtoon) 3r2627

Original Webtoon:
Naver Webtoon, Naver Series

Official Translations:
English

Note: This series is not an actual harem nor BL. Do not tag it as one.