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Five minutes later, Mu Yunyan stood silently at a window in the corner of the house. Seeing that there was no one inside, he took two steps back and climbed up to the second floor with nimble movements.

Outside, a foreigner who had been watching his movements exclaimed, "Chinese kung fu!"

Yin 14 rolled his eyes. He could clearly see that this guy climbed up the rock outside the house.

However