Tri/Angle

Our protagonist, Aki, was dumped brutally in the past, and the trauma has caused her to give up all feminine traits. Then, Aki is approached by Hajime, a member of the basketball team. At first, Hajime thinks Aki is a boy and challenges her to matches at every opportunity, but by chance, he finds out that Aki is a girl. Perhaps as a reaction to what had happened up until then, Hajime has fallen head over heels in love with Aki and honestly confesses his feelings to her. Though confused, Aki gradually opens up to Hajime's attitude.

The incident occurred after the incident, and Aki begins to have feelings for Hajime. One day, a man appears before her. It is none other than Fumiya, the boy who caused Aki's trauma...! What's more, Fumiya says he likes Aki. Is Aki, who supposedly had given up being a girl, once again popular? This is the beginning. What will become of the love between the three of them...?

(Source: Shogakukan, translated)

Note: Includes three extra chapters.