Shugo Chara! Jewel Joker #1 しゅごキャラ！ ジュエルジョーカー

The cool and spicy Amu Hinamori has graduated from Seiyo Academy's elementary school and is finally a junior high school student! She thought she would have carefree days with her precious friends in junior high... until she is asked to take on a mission related to guardian characters and has to transfer to a new school...!