Hiko is the 13th successor of the Hiten Mitsurugi Ryuu and
he taught Kenshin it. He's usually very serious and loves
to drink saki. He was a little disappointed that Kenshin
didn't bring it on one of his visits.

Hiko saved Kenshin's live when he was a little kid. He
renamed him to Kenshin Himura (original name is Shinta,
I think) and trained him as a warrior until he left and became
Hitokori Battousai.

Currently living as artisan, Hiko likes to live alone, but that
doesn't mean his swordsmanship has detoriated. At the
battle in Aoiya, during Shishio's final attack, Hiko appeared
and fought the giant Fuji and saved the people.

I think he's proud of Kenshin but he won't admit it.