Tadashi Nakamura

He is the Twin brother of Kokoro Nakamura who is normally a student at Sakikawa Senior High, but he is forced to go to Sakikawa Girls' Academy when his sister is hospitalized with a broken leg in order to help prevent Kokoro from having to repeat the school year.

He later goes onto to dating Nana Nanjo in the first Route (Vol.9) and then Kurumi Kurisu in the second route (Vol.10)