Ai, Sunakawa's sister three years his senior, is shocked to learn during a home visit that Takeo is dating. Having secretly harbored feelings of her own for Takeo, Ai is suspicious of Takeo's girlfriend and launches her own investigation...
Even if that's the case, I'll be fine.
لن تكون هناك مشكلة حتّى وإن كان ذلك صحيحًا
Wenn es so wäre,
würde es mich nicht kümmern.
Aunque fuera eso, no pasaría nada.
Aunque fuera eso, no pasaría nada.
Si c’est le cas, 
ce n’est pas grave.
Se anche fosse, non sarebbe un problema.
Mesmo que seja o caso, não tem problema.