Ikeda Chizuru here. I guess I'm gratefull to see you again. Tsk! Anyway, she had to get involved and make things complicated again... Sheesh. I'm not mad because I want to be, but... Sometimes I wish I could smile like my sister.
I'll teach you the material, 
so do it yourself.
Ich erkläre sie dir,
aber lösen musst du sie selbst!
Te enseñaré, pero los resolverás tú.
Te enseñaré, pero los resolverás tú.
Je vais te montrer,
mais remplis-le toi-même.
Io posso farti un ripasso, 
però devi finirteli da sola.
Eu vou te ensinar,
mas você vai fazer sozinha!