The period of history established by the Nest was from November 15th to the 25th. Fu Tailan had to do everything in his power to ensure that the events within this timeframe remained completely unchanged.
Within those ten days, he had only obtained the "key"—which was why he had to get his hands on it tonight and place it on the coffee table in his apartment.
Within those ten days, Chaisi had obtained the "rumor"—and though the thought made him want to dry heave, Fu Tailan had no choice but to pull the "rumor" from Westley's dead mouth for him.
As for how that cockroach-head got his hands on it after that... Was Fu Tailan supposed to look after him like his own son?
He'd rather let the Nest kill him than deliver it personally.
As long as the Illusion was released, it would be up to Chaisi's own abilities after that.
Other than those two items, for the rest of the Illusions... there was no reason Fu Tailan couldn't take a gamble, right?
