Kiraide Isasete
Omega with a kid meets his soulmate at a dating event.
Restless Webtoon
Seme used to be bullied because his classmates thought he was the omega in the classroom. Skip years later, he meets a classmate from middle school again at workplace.
Imitation Mate
Alpha x alpha initially. They were rivals back in high school and now meet years later after losing touch. After a bet, Tsukasa has to do whatever Yoshiki wants and they become fuck buddies. Tsukasa has family problems due to them having high expectations out of him as an alpha. Through their physical relationship, things start to change in Tsukasa's second gender.
Hanagara Tsumi
Shuu is an omega. Back in middle school he had a senpai that constantly bothered him everyday and his life was hell. After the senpai graduated, they lost contact. Years later, they meet at the same company after the senpai transferred into Shuu’s planning department for men’s underwear brand.
Takane no Hana wa Chirasaretai
Supposed alpha but in actuality late bloomer omega starbucks worker is thirsty for the menacing looking alpha customer.
In the Cage
Love triangle. Haru is an omega. He's currently in a relationship with Eiji, the younger bro, but he's not number one cuz Eiji always prioritize his fiance over Haru. Then Renji the older bro shows up and comes back to keep their promise when they were young.
Kashikomarimashita, Destiny
1. Tried to deny destiny as bonded pairs 2. Butler of the first couple resenting destiny
Ou-sama to Puppy Love