Kuroo Tetsurou, an alpha and Kenma Kozume, an omega were married at 19. They had a daughter Aki by 22

Their relationship was good except Kenma was a streamer and didn't have time for his family, this also added a lot of stress on Kuroo as Kenma wasn't bringing much income

They were young and immature they fought often and decided to divorce Kuroo got full custody of aki as he was deemed a better fit while kenma had visitation rights

Years later Aki is 5 Kenma has also become successfu.