Masami Yamada

A quiet and shaggy male teacher whose hobby is creating humanpowered planes. At first he appears to be something of a physicallydeveloped nerd obsessed with his hobby. Koishi delivers him meals from her parents039 grocery store. He later becomes something of a confidant attempting to help Koishi by providing a sympathetic ear after a breakup with Kei and her subsequent depression but does not take advantage of her vulnerable situation. At the end of the series it is implied that their relationship gets much closer than that of teacher and student