Koi ga Yamai de Hen ni Naru

A high school student who works at a convenience store, Maya, is troubled by the fact that people make fun of his bitchy face. What relieves his depression is a nice guy in a suit who comes to the store. He has given up hope of finding love with him because he is straight, but one day, a man with a gay magazine in his hand appears to him while he is working at the cash register...?
(-DeepL)

Original:
Jitsugyou no Nihonsha, Comic Ruelle