One will come first and agree with him, then the other kingdom will come after and ask to stand with them and agree, the celestial king wil come and say that one the queens heard that you have agreed with them and that she has dropped the case.
they split the land regardless of which one you say yes to, as long as you say yes to at least one. i dont think its possible to say no to both? after i said no to the ocean person, the plant person just said thanks for siding with us even though i didnt say anything to them.