Wei Ying wants his roommate to have a cute little birthday celebration with him. But baking cakes isn't as easy as jie jie said and breaking a promise to Wen Qing might result in his mysterious death. AKA Wei Ying, the king of multitasking goes on a "friend date" to the mall with Lan Zhan and A-Yuan, the kid he was supposed to babysit but forgot.