Amu has many Chara Nari.
This is Amu is Chara Nari with her Shugo Chara:
Amulet Heart : with Ran
Amulet Spade: with Miki
Amulet Clover: with Suu
Amulet Diamond: with Dia

And this is Amu's Chara Nari with other shugo chara:
Amulet Angel: with Eru
Amulet Devil: with Iru

This group is only about Amu's Chara Nari!!!