Hayate Ayasaki's life takes a drastic turn when he is sold to the Yakuza to settle his parents' debt, landing him in the service of the wealthy heiress Nagi Sanzenin. Amidst Nagi's insecurities, Hayate must protect her from constant abduction attempts while navigating the eccentricities of her family, including mysterious revelations about her deceased father. As new challenges arise involving unexpected relatives, aliens, cursed objects, and more, Hayate finds himself entangled in a whirlwind of Sanzenin family secrets and supernatural chaos. Can the resilient butler overcome these extraordinary trials, or will his fate be sealed by a bizarre twist of fate?