The story follows a proud, sharp-tongued, tsundere Guide from a ducal family and her silent, action-focused Sentinel bodyguard as they struggle through the awkward, humiliating, and challenging ordeal of survival after being stranded on a deserted island. Hua Mu, powerless in combat, has no choice but to rely on her Guide abilities to control Bai Zhen, this big guard dog of a Sentinel.