In the Yamete Kudasai, series:

V.1 - Yamete Kudasai, Mabushii Desu.
Sasano grew up in an all female household and loves pretty things, including Koga, a schoolmate in another class. What happens when Sasano no longer has to stare at Koga from windows but can be beside him?

V.2 - Yamete Kudasai, Koishii Desu.

Glasses-wearing Sasano, raised by his two older sisters, has always been into girly things like shojo manga and soft toys. When he starts to develop a crush on a popular classmate named Koga, Sasano wonders if his affections for cute things relate to his romantic orientation.

After he wakes up in an unfamiliar room, Yuusei goes over his memories with an aching head. Being dumped by his girlfriend. Drinking in a bar. And meeting a mysterious beautiful man in said bar. He slowly remembers these things.