ONE TWO!

"I just want to beat Myung-ho once." Song Baram, who has wandered in the shadows overshadowed by the star of a famous gym, Myung-ho, finally gets the chance to compete against him, a match he has long yearned for. After a relentless struggle, Song Baram achieves a miraculous victory, but Myung-ho is left unable to open his eyes again. Following this unfortunate incident, Song Baram quits boxing and returns to his hometown of Yongmun, where he fights to protect the only thing left to him: the 'Rose Gym'... (Source: Naver, translated) — Description from AniList community (anilist.co).