Junpei Ryuuzouji

A 19-year-old Karateka and strongman with incredible fighting ability, Junpei is the muscle of the group as well as being the only male in the group. However, his rather rough way of saying things as well as his eye for beautiful women get him into trouble more often than not. He is constantly arguing with Celcia and obsessed about curry and, briefly, heliocentrism. Junpei abhors fantasy stories and might be atheist or agnostic. He is infatuated with Airi but is clueless to Celcia's own feelings for him as well despite their constant bickering.

Junpei carries a wallet filled with membership cards from various dojos, and a condom with the words 'Use with Airi Only!' written on the wrapper and his IQ is about 86. (Source: Wikipedia)