Takatora-kun to Omegatachi
Wow! See, I was waiting for an Omegaverse author to use a hysterectomy as an Omega power play. Nemui Asada is doing Omegaverse, holy shit!
Into the Rose Garden
Ok, so it's a revenge story where an established Alpha noble falls for a lower Alpha, however because the lower Alpha sees the MC as unattainable, he focuses on the MC's Omega cousin. MC gets jealous and plots to get rid of his pregnant cousin. Lower-ranking Alpha (Omega's husband and MC's love interest) figures it out and traps MC buy obtaining MC's property and forcing him into servitude, to ultimately make him into an Omega and give him the child the MC stole from him and his Omega spouse. So I'm guessing that after the birth, the MC either was kicked out or ran away???
Jinx