The Therapist : Fist of Tae-baek (2020)

Seong-joon, the heir of Tae-baek martial arts, leaves his life of seclusion in search of Jin-su, a senior member of his discipline. On the way, he meets Bo-mi, the love of his life and realizes martial arts is useless to live, renouncing the ways of the martial arts. Instead, he opens an acupuncture clinic using the knowledge accumulated from his training.