Also known as: 坊ネズミ
"Bou" is a male side character from Sen To Chihiro No Kamikakushi. He is Yubaba's son, and in his true form appears as a giant Baby wearing a red Dudou with his name on it. For much of the film he is transformed into a plump Mouse who largely moves around by means of being carried by the transformed fly-like version of Yu-Bird, for whom he develops an affinity towards and is usually paired with.