Nekohiki no Oruorane

Fuente: AniList

A passionless cellist, stumbling drunk through back alleys in the days before Christmas, meets a wizened hobo who has honed a technique that allows him to create impossible music from the mewing of stray cats. Enthralled, the once-jaded young musician hopes to reignite his creative spark under the mentorship of the old man and his feline friends.