Boku no Suki na Hito ga Suki na Hito

When Sora Akizuki confesses his feelings to Miya Fuwa, he gets rejected outright. As it turns out, she likes Asahi Suzukaze, the president of the mysterious “Clinical Trials Club.” When he joins the club to learn more about Asahi, he discovers that she also has a crush on someone else! Could this chain of crushes get any more complicated…?

(Source: Yen Press)