Hizashi No Naka: No Riaru Uncensored 20

The series "Hizashi no Naka no Riaru" translates to "Riaru in the Same Rhythm" or "Riaru in the Same Beat". It's a manga that has been adapted into various media, including anime. The story revolves around Riaru Aoshima, a high school student who becomes involved with his classmates in music and romance.