"Extend", also known as "Candy", is secretly smuggled in from a third country. It’s a drug that expands the degenerated pheromone glands of Betas, temporarily giving them sexual pleasure similar to that of a Trait Carrier. Beta Han Jae-U fell for the promise of a promotion if he could just catch the drug dealers distributing this substance. He’s already sick of being paired with Seol Do-Ha, a crazy guy who acts all flirty despite being a dominant Alpha, and now he’s in danger of having his true identity exposed to this lunatic?!