[@The Mad Hatter] Well...I don't have much criticism other than two things:

1) Scary, dwarf Amazonian

2) It's a good thing Koichi knows Aikido, because blocking a punch from her would probably break his god damn bones.

As a side note on the quirks/five random facts about our characters:

1) Koichi absolutely loves Kumogakure and shinobi from Kumogakure, specifically because of the stories his parents told of him.

2) Koichi, despite being of age, has never been to a brothel or anything considered 'adult-only.'  Because he's so tightly-knit with his parents and determined to work hard and make a lot of money (which he has made quite a bit already since he's saved up), he's neither had the time/desire to go to such places.

3) Koichi absolutely loves to fish.  There's nothing he enjoys more than fishing.

4) Speaking of #3, Koichi actually has quite a bit of money saved up.  He likes to save his money instead of spending it.  For what reason is unknown.

5) Koichi absolutely loves rice.  If he could survive on anything, it's rice.