"I am the Eldest, leader of the Eternal Dragon clan. Outsiders, why do you trespass on the Green Leaf Village's Holy Land? Depending on your answer, your life might end now." The Eldest didn't beat around the bush, his Monster Core unleashing terrifying pressure upon Xinzi's group.
Alongside all other Liberation Temple people, our monk's eyes rose to meet the Eternal Dragons, not fazed in the slightest. Needless to say, after taking control of the villagers, Xinzi did his homework, learning about the various factions of Green Leaf Village.
To get to the Spring of Eternal Youth, to get to the Golden Immortal Hall and rob the relic that'd enable anyone, regardless of background to control the non-Celestial-Farm part of the village, one had to first go through the Eternal Dragon clan, a successful immortal bloodline created by Qiu Meng's avatars after countless trials and tribulations.