[Nemesis' will is interested in swallowing the spirit.]
[Do you wish to sacrifice the spirit to Nemesis' Will or store it in the system database for a lower grade. Note: Sacrificing the spirit will convert it into 10,000 common-grade spirits, and storing it in the system database will unlock it in the Summoner's shop, but the quality of eggs drops to Epic grade.]
Lin Fang, from the start, wished to convert this opportunity into a business only. But he wasn't aware that he could gain spirits from the eggs, too.
That would only imply that he doesn't need to kill monsters in the wild to feed them to Nemesis. 10,000 is not a small number, after all. Even after fighting so much, all he could collect was only around 42k common-grade spirits so far.
The addition of 10k is surely tempting. But then, another thought came to his head, if this were the case, then he could just buy eggs on the market and feed their spirits to Nemesis' will? Then why bother wasting this one in sacrifice?
