C2972 Strange Phenomenon

Gu Xiaoxiao held onto the door with one hand and walked closer to the person behind it. "I haven't seen your master, yet he chased us away like this. Aren't you being too rude?" As he spoke, he used a little bit of force to hold on to the door.

The person behind the door wanted to close the door, but he found that he couldn't close the door even after exerting all his strength