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The story takes place in a village called Sylvania, and centers on Chocolate Usagi-chan, Kurumi Risu-kun, and their friends and families.
Matthew is a daydreaming worrywart of a rabbit. Matthew also has two friends: Keron, a pessimistic frog who is fond of good-luck charms; and Ham, a hamster of few words and who moves through life at his own pace. The story follows the three animals' everyday lives within a mysterious forest.