Kojirase Ω no 2-dome no Koi

Ever since they were hired at the same time, Tasuku Sakura has seen Iori Narushige as a rival. Compounding this is the fact that Narushige is one of many alphas, members of a secondary sex with superior characteristics, working at their company. Sakura has been carefully hiding the fact that he is an omega, a secondary sex that causes him to experience periodic heats, as well as the disdain he holds for alphas.

However, everything changes when Sakura wakes up with a two-week gap in his memory, and somehow ends up as Narushige's mate. He can scarcely believe the tender care his coworker is suddenly showing him or the happy photos from their time together. With his life forever altered, Sakura does his best to understand his new life while Narushige vows to make Sakura fall in love with him again.