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...
Maybe that's how it is.
قد يكون الأمر هكذا
Vielleicht ist das so.
Puede que sea eso.
Puede que sea eso.
C’est peut-être 
la description parfaite.
Può darsi che sia così...
Talvez seja mesmo o caso.