Song Taojie suddenly looked at Chen Kai with a serious face.
"There's one question I've been wanting to ask you from the start, but never had the chance to. Now I finally can ask it, I hope you can answer me truthfully."
"Because if I don't get an answer to this question, I'm afraid I won't be able to sleep properly in the future, because what just happened was too bizarre."
Seeing him so serious, Chen Kai also became serious.
"Don't suddenly get serious like this out of nowhere, you'll scare me. Even though I know my martial arts skills are high and nothing will happen here."
"But it seems like your question has already gone beyond your understanding. If it's just about Xie Enci's men, you probably wouldn't feel it's strange."
Song Taojie helplessly sighed.
"It's indeed like that. Just now when I took out the room card to open the door, there was suddenly a soft sound. It suggests, this room card opened this door, but when we came upstairs."