2004, autumn festival night, holding a bag of goldfish peak through the son ( Maori love child ) was the mother of Hirayama Megumi ( Mizuno Wave the sail ) lost after the shrine, mother just disappear, after eight years, is the second grade of junior high school through the son ( water KURUMI ) attended the school the swimming department, and his grandfather, Hirayama Ryu ( Numata burst) and grandmother Jia son ( KAORI ) together every day live a simple life. The swimming club consultant teacher Tachibanaguchi Miho ( Eriko Sato ) is very concerned about the situation was, but I don't know how to get along with and through the son. Suddenly one day, go home after school to see eight years have not seen her mother's shadow. Through the son refused and without a bit sorry state of mind will contact. " I think more " began to waver. But the benefits do not mind investment attitude and expressed his will through sub sewing in campus offering Taiko performance when wearing formal attire. In the middle of the night to see her sewing formal attire Hui back, through some moved but for benefits or some doubts. When doubts solved, through son got a big shock. Additionally, Hui sewed uniforms which unfortunately embroidery is goldfish, goldfish through see son think of the original scene and have been abandoned and reality overlap again on the benefits of be furious, run away from home to hide in the school swimming pool through the son met miho.... Through the son, and the son of benefits. The three generations of interlaced feelings. Miho anxious son of emotions. Then the second grade of junior high school through the children how to face the reality of life in the " mother " " family " the unbelievable human relations, can grow it.... Catch the feelings of the sad HUMAN STORY..