Akari can't believe her big brother Takuma suddenly has a wife from out of nowhere, and her mission to screen this new addition to the family results in some unexpected twists.
The key to a happy relationship 
is all about bathing together!
‫مفتاح العلاقة السعيدة هو الاستحمام معًا!
Das Geheimnis ist, gemeinsam zu baden!
El secreto de un matrimonio
feliz está en los baños.
El secreto de un matrimonio
feliz está en los baños.
La clé d’un couple solide :
un bon bain à deux !
La ricetta per l'armonia coniugale
 è fare il bagno insieme!
Compartilhar o banho é um dos
segredos dos casais felizes.
Секрет семейного счастья —
принимать ванну вместе!