Liking your art style very much. You're a seriously talented illustrator! :)
So Pinokuni cannot LIE. However, does he ever deliberately NOT say the full truth? I would imagine he would have trained to master that art. How good is he at Poker?
Pinokuni does tell fractured truths. As for Poker, I have no idea how good he'd be since I have no idea how to play it.
A group of people are dealt cards in "hands". When a dealer asks everyone to "call", people still left in the round show their hands. The highest value hand, based on the values of the cards in them, wins. However, if a person thinks they'll lose, based on the faces or confidence of everyone else, they can choose to "fold", dismissing them from the round and unable to win anything.
I asked whether Pinokuni would be good at poker because its a game that requires a large amount of deception and maintaining your cool. The last part, from what I have seen in the comic, applies less to him, so I'd imagine he'd have a rough time at first.