Transcript (en)

The boy teaches his friend's elder sister to ride a bike every day. He holds the handlebars and supports the seat. He patiently explains the essentials and softly comforts her not to be afraid. Watching her gradually master the balance and showing a happy smile he can't help smiling too, but just then his friend suddenly shows up. He angrily asks what he's doing, while they're arguing the sister has already ridden away confidently. It turns out she did this just to comfort this hurt boy. Since the nanny came to his home her kindness has made the boy who lost his mother feel the long lost warmth. He often hangs around her watching her busy figure, but he never thought that his father was also secretly watching her and gradually fell in love with this woman. The next day his father suddenly announces that he's going to marry the nanny. Angry the boy puts his hand on her thigh just to provoke his father. His father holds the nanny's hand in front of him without wavering. On the eve of the wedding the nanny calls the boy into the room. She plays hide and seek with him letting him briefly feel his mother's tenderness again. But the next day she still marries his father. The heartbroken boy holds back his tears and wishes her well, then he leaves the city alone.