Zheng Hao, Xin Yu, Yi Rou, and Meng Yun sit at the same table during class. Zheng Hao keeps fooling around without discipline instead of behaving himself during the class, making Meng Yun burst into laughter. Yi Rou reminds him to concentrate in a whisper, leaving only Xin Yu to focus on the lecture. Because of the principle of collective punishment, the troop is asked to demonstrate serving tea to the elderly by sitting motionless while holding a cup of tea for three minutes as punishment. Zheng Hao is eager to get a demerit by making mistakes when he is pouring tea as he cannot be bothered less about it, so he knocks over his teacup on purpose. The others flinch to wipe the hot tea except for Xin Yu, who remains to hold the teacup while bearing the scalding pain. She persists to the end and proceeds to rinse with cool water. Zheng Hao follows her, using the burns as an excuse. Xin Yu only exchanged a few words with him before a fight erupted. They want to split up and regroup, but they are not allowed to, not to mention they got deducted one point each. (Source: Viu)