Kai Nagase

永瀬 芥

The chemistry lab manager. A quiet, serious and mysterious man, yet he is very intelligent and has gotten his thesis printed in numerous science magazines. Gaku is in love with him, admires him and always is praising him whenever he can. Nagase knows this, and takes advantage of this when needed. He is the son of Prof.Aizawa, the main antagonist. (Source: Wikipedia)