Where can I find that?

https://re-library.com/translations/two-as-one-princesses/

Thats it? A prompt?

Truck-chan for yuri isekai.

Ahh I hope it got serialized

For clarification, the royal "we" was used to distinguish "watakushi" from "watashi".

The author should have used wagahai :) but your "we" works on two levels.