Tadase is one of the Gurdians and is the prince. Girls is the school him but he gets his Shugo Chara to reject all of them. But if you call him prince he gets out of control. He also protects the Humpty lock, which Amu wears. Later they found out when Tadase was little Utau and Ikuto was friends with Tadase but his parents did not like Ikuto. Tadase's Chara Kieski when he transform turns into Platinum Royal he uses his staff White Decoration to help cleanse X Egg's with Amu. Later Tadase confesses to Amu that he likes her, and in the last episode of Shugo Chara! Party! Tadase kisses Amu on the cheek at an amusment park.