Lack Men's Luck

Tsukishima works for a music company, and has been frustrated that he can't be noticed by those around him. Meanwhile at his side job teaching as a private tutor, he meets a 12-year-old boy named Ren. Tsukishima is irritated by the boy's inability to communicate at first, but before long, he begins to realize that the boy has surprising talent... Source: Kodansha