Shugo Chara! 20th Anniversary Edition, Volume 4

There’s a connection between Ikuto and Tadase, and Amu is curious to find out more. One day, Ikuto suddenly shows up and slinks into Amu’s bedroom. While in hiding, Ikuto gets in an argument with Amu about Tadase who drops by to visit. Ikuto disappears soon after. Tadase finally tells Amu about his history with Ikuto the black cat. Will this shocking revelation result in a love triangle, complicating Amu’s affections for those she holds true to her heart?