Okama Waltz

The main character, a coffee shop owner, is in love with Yusuke, a student and a regular at the shop. However, it is an unrequited love. Yusuke seems to be interested in him too, but the shy shop owner has no intention of confessing, saying, "Just looking at him is enough." But when Sakurai, a regular customer who has known the owner for a long time, started to tell him how he feels, things take a turn for the worse... A sad and fragile love-triangle story!

(Source: Takadashobo, translated)