A male honor student who is gay and in love with Suetake. He has poor self-control and is known as "the nosebleed king". Though Suetake is completely oblivious to Kudo's affections, everyone else is aware of them, and they are constantly rolling their eyes over his actions (which is very similar to how they react to Kitagawa's love for Mika, the only difference being that Mika is aware of Kitagawa's feelings, but can do little to stop her advances). He is seen having fantasies about Suetake, and not much else.
wikipedia http://en.wikipedia.org/wiki/Doki_Doki_School_Hours#Characters