Haruna's sister, Aki, doesn't believe is the spirit of the hot springs, but while they're taking a bath, she shows them her powers.
My sister Aki-chan.
أختي آكي-تشان
Meine kleine Schwester, Aki-chan.
Es Aki, mi hermana menor.
Esta es Aki, mi hermana menor.
Voici Aki, ma petite sœur.
Questa è mia sorella, Aki.
Esta é a minha irmã, Aki.