Shima-kun ni Zenbu Ageru

Overview

One day, Tori overhears his brother's best friend Shima confessing his love for his brother. Although they don't end up going out, Tori can't hide his shock that it was his brother who Shima loved... and, what had felt like special treatment was just Shima treating him like a little kid. But, later on the way to school, something happens that makes Tori think he might just have a chance after all, and he decides to get Shima's attention by taking the physical approach! Tori's so determined to win Shima's love that he doesn't realize the target of Shima's affections actually isn't his brother... In this cute comedy of errors, a shy-but-naughty bottom and his brother's handsome friend fumble their way to passionate love! (Source: Renta!) Note: Includes two extra chapters.

Source: AniList