Putting aside Yakou's reaction, anyone else find it odd that Hal managed to not only find the apparently most senior player on the island, but proceed to make them indebted to him? On top of that, how did Nobuko even reach level 100 when she apparently "just" managed to hit high class around the time the Ban started? Baku rigged the Colosseum and Lalo rigged the arranged battle system, so what did Hal/Nobuko do to farm so many levels? The whole situation is pretty suspect.