You spotted Baku playing a pachinko game, in which he loses. You then decides in an act of pity to play the game for him, you get the added two sevens, winning the game. You then walk together when your loan sharks arrive and he acts like an angry fellow loan shark that was mad due to your lawyer relative ratting out their whole group.

He proceeds to deal with your loan sharks by gaslighting them, acting like a yakuza member to scare them, which fortunately works. He then turns towards you and pats you on the back.

"I guess we're even now, thanks for getting me the win on that game. You clever creep." He says with a smile. But what you didn't know or rather didn't understand, was that this man not a bad person. However, he's also not a good person.