During the ruckus as the Kaginoji house, Nasa and Tsukasa pledge their love to each other at a church. After Nasa reports to Kaname that he has finally proposed, she points that he still doesn't have a ring. Although he doesn't take much notice at first, Nasa gradually becomes more self-consciousness about the role of a ring in newlywed life.
and it'd be a waste of money. 
I already appreciate the sentiment.
.وسيكون مضيعة للمال، لكن أقدّر اهتمامك بالأمر
No vale la pena,
pero te agradezco la intención.
e sarebbe uno spreco di soldi. Mi basta il pensiero.
é um desperdício de dinheiro.
Sua intenção já me deixa feliz.
Я ценю твоё стремление,
но не надо тратиться.