Yakuza-sama no Omocha
Seme is a bartender at a gay bar. He got into a mishap and ended up owing a loan shark a shit ton of money. Luckily a regular from his work saves the day, but not for free. Now he’s a yukuza head’s toy until he pays pay his debt with his body.
Ore no Tantou Kangoshi ga Kanja no Chinpo o Kuiasaru Kuso Bitch datta Ken ni
that's just porn
Omega wa Pink no Yume wo Miru
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 defenceless Suzuki...
Soshite Boku wa Koi wo Shiru