Tsukishima Kei

Yamaguchi, a young 25-year-old recessive Omega who was widowed after losing her husband due to an illness, was left alone with her two-year-old son in the apartment she shared with her husband. Yamaguchi's husband was named Ren.

Yamaguchi and Ren married at the age of 23 and at that same age they gave birth to their first and only child, a 2-year-old boy named Takeo.

Tsukishima Kei is Yamaguchi's boss, a young, dominant alpha of 25 years old who wants to have something with Yamaguchi but does not know that he is married and has a two-year-old son.

Tsukishima had no idea that Yamaguchi had gotten married and had a child since Yamaguchi didn't share anything about his private life, although an engagement ring could always be seen on his hand, but he never thought that Yamaguchi could be married, much less have a child.