When he was young, he chose to retire and conceal his talents so he could devote himself to raising his son. When the shabby little wooden rocking horse, filled with his grandfatherly love, was smashed to pieces like a piece of trash, the old man's heart shattered too. Carrying his rusty toolbox, he resolutely walked out into the rainy night. Everyone was waiting to laugh at him, but they had no idea what a formidable legend they were about to lose. Having an elder in the family is like having a treasure. Only when it was too late did they finally understand.