Regarding the allocation of the Life Energy descending from the sky, discussions had already taken place before Xia Nan and the others arrived.
As for Sarisa, it goes without saying that her goal is to thwart the smooth progress of Dodd's "Algae Scale" ceremony. Discovering she could perceive the positions of nearby adventurers and assist Xia Nan with information, she had long decided to concentrate all possible Life Energy from the Secret Realm on Xia Nan, who could use Battle Skills.
The Spotted Cat race Sasha, after exchanging intelligence with the two along the way and gaining a rough understanding of the ceremony mechanism, also wisely made the same decision as Sarisa.
Moreover, because he observed that adventurers who died in the Secret Realm only entered a weakened state in the real world.
