Seme is an alpha who is in lust with one of his omega coworkers. He gives a love pheromone potion to him but instead another coworker who he thought was a beta drank it. The bete is actually an omega and in this story, the uke. They have sex like crazy for a week because of the drug potion. When the uke finds out he is mad and the alpha feels really bad, because he fell inlove with the uke. In the end they resolve everything and get together after making alpha jump through hoops to make up for what he did
Omega wa Pink no Yume wo Miru