Nakasetagari no Hasugaya-kun

Overview

Due to past trauma, Yanai is a high school boy who has difficulty expressing his emotions. One day, as he searches for ways to change himself, he finds out that his classmate Hasugaya's family runs a chiropractic clinic that relieves emotional stiffness. After begging Hasugaya, who is reluctant to bother, to give him a treatment, Yanai is able to cry for the first time in years, but... before his very eyes is Hasugaya's ecstatic expression!? (Source: Kadokawa, translated)

Source: AniList