Goo Jae-he

Goo Jae-he is an omega who lives alone in his house. Goo Jae-he has a beta younger sister who is married to an alpha man. Goo Jae-he's sister has a son named Leo; Goo Jae-he occasionally takes care of Leo while his sister is at work, and he doesn't mind because he considers Leo to be his precious nephew.

Until the day Goo Jae-he's sister and her husband left to work abroad, the plane they were on crashed, resulting in the death of both Goo Jae-he's sister and her husband in the accident.

Since then, Goo Jae-he has raised Leo as if he were his own child and loves him dearly. He also works hard to provide for Leo's life. As time passes, Leo is now a teenager attending high school. Leo has grown into a dominant alpha who is known to be quite cold by his peers, as Leo still remembers the tragedy that befell his parents.