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.
A gift from Mom and Dad
.هدية من أمك وأبيك
Ein Geschenk für dich,
von deinen dich liebenden Eltern!
Un regalo de papá y mamá
para nuestro querido hijo.
Un regalo de papá y mamá
para nuestro querido hijo.
Cadeau de la part de papa et maman
à leur fils chéri !
Un regalo per il nostro amato figlio
da parte di mamma e papà!
É um presente do papai e da mamãe
pro nosso filho amado!
Подарок дорогому сыну
от любящих родителей!