amakawa tsukasa

He was the first King's Chair of the "Guardians" and their founder. He manages the planetarium as a part-time job and is the artist behind the artbook "Kokoro no Tamago" (The Heart's Egg). He bears a resemblance to Tadase and was initially believed to possess the Humpty Lock. A cat lover, he has a particular fondness for Ikuto’s cat ears. Though he plays a minor role, his influence is significant, especially in assigning the Guardian Chairs and offering guidance to Tadase. He has the ability to travel through time. It is revealed in the final chapter of the manga that he is actually Tadase’s adult self, traveling back in time. However, in chapter 48, it is shockingly disclosed that the person Amu thought was Tsukasa was indeed Tadase from the future. This confusion arose when Kiseki referred to him as "Tadase." The reason for their similar appearance is that he is Tadase’s mother’s brother. (Source: Shugo Chara! Wikia, Wikipedia)