Shall I Raise A Villain Princess?

Traveling to a different world and becoming the son of a baron, Ryan worked hard to learn magic, sharpen his sword skills, and run a business, hoping to flex his muscles in this world.
However, there seems to be a bug in his life. He always inexplicably returns to the time when he first crossed over, just like a Game rewinding, and all the abilities and wealth he accumulated before are reset to zero.
After dozens of rewinds, he couldn't find a solution, so he let himself go completely and became the 'Demon King', the 'King Slayer', the 'Knight of Desire', the 'Lord of Heretics'...
Until one day, he met a somewhat familiar girl and saw with his own eyes that after the girl died, the world instantly rewinded with the girl as the center.
Only then did he realize that he had traveled back to the "Villain Princess Development Plan" he played in his previous life. As long as the heroine Cecilia dies, the game will start again.
Cecilia, for the future of the world, I have to control you!