It's "White Day," the day that boys who received chocolates on Valentine's Day give their return gifts to the girls. And Momiji has one big surprise gift for Tohru!
What a nice girl you are.
Oh, was für eine nette junge Dame!
Qué chica linda que eres.
Ça alors, comme vous êtes gentille.
Que garota legal você é.
О-хо-хо, какая ты чуткая.