My Childhood Friends Mask Their True Nature Well

Overview

A twisted love triangle where two brothers fight over their childhood friend, the female protagonist. The protagonist Mei has two childhood friends: Aki and Yuuki, a pair of hot and handsome brothers who are very popular. The three of them all attend the same university. Charmed by the older brother Aki, Mei ends up in a physical relationship with him against her wishes. On the other hand, the younger brother Yuuki, well aware of this relationship, nonetheless harbors unrequited feelings for her. Aki's possessiveness. Yuuki's jealousy. A toxic cauldron of swirling turmoil warps their relationship... (Source: DLSite)

Source: AniList