How are things, Kei-chan?

Have you gotten used to that surname yet?

But both 'Kei' and 'Tendou' are precious names given to me by Aris and everyone else.

...How should I say it

I was a bit confused at first

Tendou Kei

On duty

I have no intention of changing it to any other name anymore.

I see. That's good.

When the time comes, I think it will be Sensei who will have to change your surname.

Therefore
...

Wait, are you suddenly talking about what happens after we get married?