Kizutsuite Romance

伤心罗曼史 / 伤痛的Romance / 傷ついてロマンス From Bakeneko Scanlations:

Otou (a.k.a Hotaru from Koi o Suru nara Kono Machi de)
works as a host in a host club in the country. Since his high-school days he has had a crush on his senpai Okawa, so he's still continuing to chase after him, but his sempai treats Otou as nothing more than a pest. Still Otou wants to be near his senpai, and because he loves him there's no helping it.... Even if his senpai treats him badly, what will be the outcome of Otou's unrequited love!?