15-sai, Kyou kara Dousei Hajimemasu. is a oNA (web) anime that premiered in spring 2018, produced by Production I.G.

About the production: the story comes from a manga, there are 30 episodes of about 1 minutes and its current status is "finished".

Its main genres are romance.

On AniList, 15-sai, Kyou kara Dousei Hajimemasu. has an average score of 43%, an average score, and appears on 632 users' lists.

"I was planning for us to stay just friends... but I'm not holding back anymore." I'm living with my childhood friend turned savage! My heart won't stop throbbing as each day passes and he just won't give up...!! After entering high school, Hiyori is finally able to fulfill her dream of living alone. Or so she thought... Her childhood friend Soushi is there waiting for her at her new apartment. He suddenly kisses her and Hiyori is unable to hide her confusion. Is he teasing her? Or is this for real...? For the first time, she begins to see Soushi, who she'd never paid too much attention to before, as a man. At the age of 15, Hiyori begins her radical, new life living with Soushi! (Source: Renta!)

Official synopsis from AniList.