Concierge no Koibito

Hinata has never had any experience with love in all 19 years of his existence, but he finally manages to snatch a date with the help of a classmate. With no experience with girls, Hinata asks his best friend Yuuma for help, who has seemingly had much experience. Yuuma begins teaching Hinata how to seduce a girl, but then... something happens. (Source: AniList)