古城 光太郎

Main character. He is dating Rina.

He is calm and attentive, and is the glue that keeps everyone together. He likes Rina because she is cheerful and fun to be with, but he is more on the same wavelength with Mayu, who is quieter and calmer.

However, they do not have romantic feelings for each other. He is very interested in eroticism, but tries not to show it in his attitude. He is sullen.

From official site]