Well, there is a very good reason for it.

[Sonia's quiet for a few moments and her smile almost looks a little sad.]

I am the princess of my home country. So, I can understand why people are formal with me.

I must agree, I would have loved to have met under more positive circumstances. But I do have to admit something that I've been holding back, Inaba-san. [Suddenly, she looks at the other girl with wide sparkling eyes.] You look absolutely adorable with those bunny ears!