Kisaragi Soushichi

The protagonist of Ayakashibito. His former name before he escaped from the island facility is Takebe Ryouichi.
He's a Jinyou who cries when he is sad, and cries when he is really happy. He can make good decisions on the fly, and thus makes good use of his power:

Spoiler

ability to communicate with metals

. Pretty mature in terms of attitude towards life, and values the importance of everyday life.

Spoiler

He is a Relative of a Human made Youkai a Tsukumogami.