Utsumi, an Alpha salaryman, has been secretly yearning after his Omega subordinate, Mochizuki. In order to obtain the impregnable Mochizuki, he decides to use the aphrodisiac drug, "Pink Potion." However, by mistake, the one who takes the Pink Potion is one of his other subordinates, a seemingly antisocial Beta he doesn't get along with, Suzuki. The drug is only supposed to work on Omegas, but Suzuki actually goes into heat as per the drug's intended effect. Succumbing to his instincts, Utsumi ravages the defenseless Suzuki...

(Source: Kadokawa, translated)