Saionji Kimimaro

About
An odd guy who pretends to be a Heian aristocrat. He appears close by to Tentei academy to admire it and to proclaim Amatsugami Hidehiko as his rival. He tries to speak in an old fashioned way as well.

He always appears on a horse and somehow seems to have a reserve or two out of sight. He is very capable in getting on peoples nerves and is surely a huge embarrassment. He is also a huge pushover.

It is revealed that he is the actual chairman of the Student Association to everyone's huge shock and disappointment. It turns out vice chairmen had the unenviable task to hide the somehow always excentric chairman from the public eye and to keep the placated.

This went wrong this time as Hidehiko appeared and started messing things up. Kimimaro is somewhat jealous of him starting his own school and wanted to do the same.

Most of his appearances has him being hit by Kozuki Sayoko's harisen and he also gets pricked by Sumako's hedgehog Harrison. Both things he is training to withstand by eating chestnuts and sea urchins.

He conspires with Yamada Reiichi to take down Hidehiko. He sends out his equally weird personal squad to attack Tentei whilst Hidehiko attacks Golden Industrial. This fails as they are easily dispatched by the returning forces of Hidehiko. As Golden Industrial falls, him and Yamada try to escape in a helicopter which is downed near the Student Association HQ.

He makes a last stand there and he ultimately runs off with all his horses into his room. He is locked in there and the building is blown up.

He survives this somehow and his ending shows that he goes back to his hometowns and gets married to a 20 year older businesswoman named Wakako. He is being a good stay-at-home husband who can't wait to have a child.