Nasa realizes he's been so enthralled with newlywed life he forgot to tell his parents he's gotten married. He tries to wrap it up with a simple phone call, but Tsukasa decides she wants to meet his parents. While Nasa is anxious about a potentially embarrassing meeting, the two of them head to visit Nasa's parents in Nara.
If I had to explain how this happened 
after a few days of cohabitation...
إن اضطررت لشرح كيف حدث هذا 
...بعد بضعة أيام من العيش رفقة بعض
Wenn ich erklären müsste,
wie es nach ein paar Tagen
Hace unos días que vivimos juntos.
Hace unos días que vivimos juntos.
Quant à comment
on s’est retrouvés ainsi
Se dovessi spiegare come siamo arrivati a questo 
dopo qualche giorno di convivenza...
Se preciso explicar como isto aconteceu
após alguns dias morando junto...
Я объясню, как так вышло всего
за несколько дней совместной жизни.