Seo Yian is a Beta butler servicing the handsome Alpha CEO, Yoo Jekwon, who he is in love with. However, Mr. Yoo has an Omega lover, forcing Yian to restrain his feelings of yearning and desire.
But once Mr. Yoo and Yian found out the Omega lover's infidelity, Yian started to make his move.

(Source: INKR)

Note: Includes 2 extra chapters and 26 chapter side story.