Somehow Shimoda stumbled into an underground kingdom.
This kingdom is a land for "animals that create the perfect society", with their queen at the top.
In this society, there are few physical differences, no aging, and the collective's happiness is prioritized over the individual's. It's too ideal a place, but there is a hidden truth about this system
As there are more children, 
there are more varieties of keyhole.
مع تضاعف عدد الأطفال، ترتفع أنواع ثقب القفل
Je mehr Kinder es gibt, desto mehr
Variationen des Schlüssellochs gibt es.
Cuanto más hijos hay,
más variedad de cerraduras.
Cuanto más hijos hay,
más variedad de cerraduras.
Au fil des générations,
sa forme varie de plus en plus.
Più bambini ci sono, 
più aumentano le varianti delle serrature.
Com mais filhotes, há uma maior
variedade de buracos de fechadura.
Чем больше детёнышей,
тем больше вариантов замка.