Kira seems to know who Hinako really is, and wants her to give up her conquest of the school. It seems the only way for her to convince him otherwise is to fight him... and win.
Because you're my sister.
.لأنّك أختي
Weil du meine kleine Schwester bist.
porque eres mi hermana.
Porque eres mi hermana.
Après tout, t’es ma petite sœur.
Perché tu per me sei...
Porque você é a minha irmãzinha.
Ведь ты мне как сестра.