Is It Appropriate for You, the Son of the Demon Emperor, to Join the Demon Suppression Division?

[No system + decisive killing + single female protagonist] Fang Hebai traveled to the fantasy world. It's just that his script is very different from other time travels. Not only does he have no system, he has no father or mother. He has mysterious power in his blood but cannot practice it, so he can only do odd jobs in the sect. Because of the power in his bloodline, he is bullied by the eldest lady of the sect every day and is used as a tool to help him cultivate. Just when he was about to be eaten up by the eldest lady in the sect, a female voice suddenly appeared in his mind: "My son!" Fang Hebai burst into tears: "I hope for the stars and the moon, and finally you have come to the system! But why did you take advantage of me as soon as you came up?" "What kind of system is this? I am your mother! The strongest empress in the history of the demon clan!"