Plans always seem seamless in their formulation but resemble the emperor's new dress once they hit the ground.
There are no loopholes because there was never an actual dress.
Lu Bei was counting on She Huan's fiery passion. Hoping She Huan, with her innate realm level, would storm Snake Bone Mountain and rob the Blood Soul Fruit, this would provide him with the opportunity to reap benefits secretly.
However, She Huan was much more rational than he had imagined. Even when her heart was aflame, she did not blindly rush forth. Her invisibility technique, a descendant of the bloodline divine power, went unnoticed by the disciple of the Snake Dragon Cult guarding the Snake Bone Mountain. With their foundation-level cultivation, they were oblivious to the fact that She Huan flew over their heads, enjoying the stolen Blood Soul Fruit.
She Huan consumed four Blood Soul Fruits in a row, sat cross-legged, and refined the source of her bloodline with the help of the medicinal energy.