Himehagi Aisaku

He's your really hotblooded, and really stupid protagonist. Really he's just… dumb. But his heart is at the right place and his brain does work a little better in emergencies.
Lives alone in his huge japanese style house (more like castle). His parents are always flying around.
He tends to act first and think later, and as mentioned, he isn't too bright but his passion is unbeatable. He likes to play darts but he sucks at it.