Saiai Omega ni Hanataba wo

Hiroki, an elite alpha of a prestigious family, and Akito, an omega who has lived peacefully with a kind family, meet in high school. Despite struggles with family conflicts and society’s lingering discrimination against omegas, the two overcome these challenges and get married. Now, they are happily living as a family of three with their beloved kindergarten son, Ren. But when Ren bites a friend at kindergarten, a new wave of troubles begins.

(Source: Gentosha Comics, translated)

Note: Includes two extra chapters.