Nasa and Tsukasa take an overnight bus to visit his parents in Nara. They attempt to enjoy the trip like a honeymoon, when Chitose shows up at a service area, asking to know why Tsukasa married Nasa, who happens to overhear the conversation and begins to wonder the same thing. As the couple attempt to enjoy seeing the sights in Kyoto, Chitose appears again. She attempts to test Nasa to see if he's worthy to be married to Tsukasa, and he explains why he decided to marry her.
And since you don't know 
anything about her...
...وبما أنك لا تعرف أيّ شيءٍ بخصوصها
Und wenn du nichts über sie weißt,
Y si no sabes nada sobre tu pareja,
Y si no sabes nada sobre tu pareja,
Comment est-ce que tu peux l’aimer
E visto che non sai proprio nulla di lei...
E se não sabe nada
sobre a outra pessoa,
А раз ты ничего о ней не знаешь...