C431 Chen Yikai's Worries

When Lee Yang opened the door, he saw a man in blue with a toolbox on his back unlocking the lock. Lee Yang's sudden opening of the door gave him a shock. He patted his chest and said, What?" Alright, alright, he opened the door. But this lock of your house is really a little strange. I've already knocked it open. The door is still seamlessly shut. How about this