A SIGN OF AFFECTION

Yuki Itose is just a typical student dealing with the pressures of college. She is struggling one day on the train when an upperclassman named Itsuomi Nagi helps her out. As he gradually opens a new world to her, Yuki develops feelings for Itsuomi. A pure love story begins to grow. (Source: Crunchyroll) — Description from AniList community (anilist.co).