Shima-chan-chi no Tsugai Jijou

As teenagers, Kuroga Akane and Shirosaki Aoi couldn’t have been more different. An alpha and an omega from rival schools, their initial meeting wasn’t exactly love at first sight. In fact, it was downright brutal! Fast forward to adulthood, and not only are they mated and married, but they even have an adorable daughter! How did these former delinquents go from wanting to beat each other to a pulp to falling in love?!
(Source: Seven Seas Entertainment)
Note: Includes two extra chapters.