Migi and Dali have been fully accepted as members of the Sonoyama family.
They behave just like real parent and child, but the twins notice that Mom and Dad are acting somewhat distant.
Suspecting that the Sonoyama couple might be hiding something, the two discreetly begin to search the house and stumble upon an unexpected secret of the couple.

Migi and Dali are shocked, wondering if they have been deceived. However, determined not to let things end this way, they execute a plan to retaliate against the Sonoyamas.
Hitori,
،هيتوري
Hitori, die Willkommensfeier beginnt.
La fiesta de bienvenida
empezará pronto, Hitori.
La fiesta de bienvenida
empezará pronto, Hitori.
Hitori, c’est bientôt l’heure
de ta fête de bienvenue.
Hitori, la festa di benvenuto sta per iniziare.
Hitori, está quase na hora
da festa de boas-vindas.
Хитори, посвящённая тебе вечеринка
вот-вот начнётся.