The contract stipulates that guests must maintain proper attire even in their own rooms.
Anyone who has watched the show knows it's for the sake of surprise attacks.
For example, the wake-up calls in the morning.
Ye Wan didn't have any inappropriate pajamas, so after dinner, she went back to her room, played with the game console for a while, took a bath and went to bed early.
The next morning, after her jog, she found her mission card slipped under the door.
Mission: Persuade He Sichen to change his outfit.
How hard could that be?
Ye Wan turned and left.
She knocked on the door, thump thump thump, and saw He Sichen, in a T-shirt and shorts, as he opened the door.
He clearly hadn't woken up yet, with bleary eyes and hair that looked like it had been electrocuted.
And he was lacking the cool, melancholic demeanor he had when they met the day before.
He seemed like a naive and honest Golden Retriever.