David and Tao Bao have grown up together in the orphanage. Xiao Xi joins them in preparing food for a volunteering visit and meets the orphanage director, Xiu Qin. Xiao Xi discovers that David has lost his sense of taste. 大为和陶宝都是在孤儿院长大。他们和晓溪准备了美食到孤儿院做义工，并遇见了院长妈妈，秀琴。 晓溪无意间发现大为失去了味觉。