Yi Rou secretly adds a sleeping pill to Zhen Hao's medicine and then offers to sleep on Zheng Hao's room floor. The reason is that the showerhead in her room is broken and leaking, and the room may be flooded at night. And so, Zheng Hao decides to go to Yi Rou's room to help her repair the showerhead, but he doesn't manage to do so. Eventually, both of them agreed to switch rooms. (Source: Viu)