Family Comes First: My Glitchy System Saves the Day

Raised by his mentor, Anthony Brett foresees a future where his adopted younger brother frames him, destroys his three sisters' lives, turns the family against him, and kills him. After discovering the prophecy is coming true, he joins his new family. At the most critical moment, the jade pendant his mentor gives him activates a system. But because it comes from the fantasy realm that is vastly different from the modern world, it creates hilarious mix-ups.