第 4 集: 資深潛水員參加黃金週聯合訓練

4

It's the Golden Week holiday, and combined practice with veteran divers begins! They are an eclectic bunch including one diver named Yamada A.K.A. Pinky who views Youichi as a rival for some reason. Tomoki enthusiastically embraces the higher level of practice, but... (Source: Amazon)