>>281766253
The version of mahjong they play isn't even real mahjong. All you really need to know is the basic concept of "you build a hand out of sets/sequences of tiles, and then wait for your opponent to discard the tile that completes your hand. Certain sets are worth more than others"
then the characters will explain "discarding this tile is scary because he might be waiting for an abrakazam worth a million points, or maybe that's too flashy and he's going for a simple bibbity-bobbity-boo instead, or maybe he knows that I know he knows that would be a risky play in a normal game so he's expecting me to psyche myself out" as they go and you'll get the gist