Nobody talks about this one. A kid finds a fairy in an ordinary park on an ordinary Sunday, and the entire hour becomes a conversation about what magic actually means when nobody's watching. There's no quest, no villain, no reason for the story to exist except that two children and something impossible decided to spend a day together. The show trusts quietness the way most anime trust explosions. It costs nothing to watch and leaves you wondering why more children's stories aren't built this way, on gentleness instead of urgency.
Marin and Yamato are two children who come across a mysterious fairy while in a park. Released in 2000, the OVA tells its story in a single episode, built around that unexpected discovery.