Those spiritual ingredients that could increase lifespan were extremely expensive. However, they came with many different effects.
If the Creators had consumed some kind of spiritual ingredient that could increase their lifespans, the new spiritual ingredients provided by Lin Yuan would most likely be ineffective.
However, Li Feng did not specifically mention this to Lin Yuan. For those Creators, as long as a channel to increase lifespan was provided, regardless of whether it was effective in the end, they would accept the offer.
