Young Master Villain Doesn’t Want To Be Annihilated

The noble evil young man Roa Akat remembered the memory of his past life on the day he met his righteous sister, and found that this is the world of the galgame he once played, and he is the big villain who can’t get around in the public line of the game. How can I avoid the broken ending of my own? Roa awakened the system and began the road to survival.