Manabu Takasaki
Manabu is a teacher at the high school. He tries to take his job seriously, yet he almost always gets dumbfounded for his love with Sakurai-sensei. He is lovestruck with one sided love, and always makes an attempt to get closer to her, yet it usually ends up failing.

The main gag with Manabu is that there will be two situations. One usually has to do with his crush or something he needs to know about, and the other is Haruna informing him on an issue, usually with Tsuyoshi involved. He suddenly gives Haruna a very insane order to fix it to buy time, to which she will agree, and then he will retract that statement and ask her something. Realizing he is safe, he will then run off to try and solve Haruna's problem, usually going the wrong way to get there.