Jojo's Bizarre Adventure - Kirakira Hoshi ga Naku Yoru ni (Doujinshi)

Guido Mista x Giorno Giovanna doujin Mista starts learning to play guitar, but Giorno’s not sure how he feels about it… (set after the events of Part 5, contains spoilers). Artist's pixiv: https://www.pixiv.net/en/users/9791618