Ayumu is the main character of the story. It is him who discovers Wakkun in the woods and befriends the fairies, Dosshiru and Shisshin. He is one of the few characters to make active appearance in both parts of the series, the Summer Arc and the Winter Arc. During the summer he is the main character and is staying at his father's veterinary office in Tana. During winter he is studying in Yokohama.