"Great Detective Sima Ji! Why do you want to delve so deeply into your hidden research?"
"Imagine this! You are in poverty and no one is helping you! You are also wanted by a famous local gangster! What should you do at this time?"
"Call the police!"
"What if it's too late?"
"Hide!"
"As you said, hide! So now you know why I have to research so deeply!"
"But... This is not the reason for you to sneak into other people's homes..."
Concept: the fun of solving crimes and the battle of ideas