Lin Ziqi built herself an invisible house, and she was locked inside. She seemed free, but she could never get past the cold wall. No one else can get in, and she can't get out. She originally thought she could spend her whole life safely in the house, until one day she met Lu Yixing, who came to besiege her fortress with a weapon called love, and she had no choice but to abandon her armor. When she finally made up her mind to open the door, the moment she stepped out, she was pushed back by Lu Yixing himself.