Mr. Xu asked someone to open the window, and Jian Ran looked in through the window, and saw Jian Xin sitting quietly in the room.

Because Jianxin's back was facing them, she couldn't see her expression, and didn't know if she was really insane, or just pretending?

"Miss Jian, your younger sister, Miss Jian Er, has come to see you." Mr. Xu clapped his hands and said.