Mochimochi no Ki (OVA)

Mameta, a five‑year‑old boy, lives with his grandfather. He is timid and often wakes his grandfather in the middle of the night to accompany him to the outhouse. The shadow of the enormous horse‑chestnut tree in their yard frightens him. Grandpa tells him that once a year, on November 20, a single brave child can see a light inside that tree. Despite this, Mameta remains scared and falls asleep. That night, Grandpa suffers a severe stomach ache, and Mameta, setting aside his fears, runs barefoot down the mountain to summon a doctor. On the way back up, the doctor carries him piggyback, and from the doctor’s back Mameta sees the glowing light in the tree. Yet the next nights he continues to ask his grandfather to go with him to the outhouse. Grandpa’s lesson is that Mameta should never think of himself as weak or timid; as long as he has care in his heart, he will be able to do what needs to be done.