#PTB Bro, I'm leaving first. This feast has reached its final moment, the exquisite dishes have long been consumed, leaving only cold leftovers and a mess everywhere. The smart ones have already eaten their fill and quietly left, while you, still unaware, are reluctant to leave, banging your chopsticks against the bowl, fantasizing about the next delicious main course. In the end, what you face is the huge Transaction History of this feast; someone always has to foot the bill, and this time it's you.