Hatsukoi Overdose

Mayu, a second-year high school girl, has long had a crush on her childhood friend Yuma, who is the same age as her. Meanwhile, Shoma, Yuma's younger twin brother, has been looking out for Mayu for a long time. But Yuma has forbidden feelings for Shoma… This is a triangular love story full of tangled unrequited feelings! (Source: Kadokawa, translated)