Milk Attack!

Woo-Jin, a young alpha juggling part-time jobs, shows up at the wrong place for a delivery. Yoo-Hyuk, an older omega in heat, answers the door and asks him to stay. They have their sweet fun and make a pact to meet for Yoo-Hyuk’s cycles, but Woo-Jin wants more. He’s smitten! Yoo-Hyuk can’t believe someone could be serious about a mean, large omega with an unusual trait like himself. Can Woo-Jin convince Yoo-Hyuk of his sincerity, or will their relationship end before it can really get started?

(Source: Tapas)

Note: Includes nine extra chapters.