“Rooftop Law” set the rules for rooftop battlers. However, people are still drowning in rigid rules, struggling for survival. Yu-Lun Wu battled for Chao-Min Chen’s rooftop with his “rooftop challenge note”. After winning the rooftop, he got his “ownership certificate”. Ci-Ke Yu, with her fresh rooftop challenge note, came to battle for Wu’s rooftop. Unexpectedly, Wu found out that Yu was pregnant. Yu asked him to stay, he argued that she should observe the Rooftop Law as “one rooftop shall not accommodate more than one person”.