New War Lord's Apocalypse system

Arthur, the most terrifying warlord in the world, has reincarnated into an apocalyptic world. His pursuit of power made him the richest and most powerful man on earth. But all that power and riches couldn't save Arthur from dying of a terrible disease. When Arthur thought he was going to hell for sure, he met the god. God gave him two choices: to pay for all the sins he committed in the eternal pit of deep hell or reborn into a world destroyed by magic and overran by all kinds of monsters and rebuild it. Should he choose to accept to be reborn, God agreed to give him only one thing except immortality. Obviously, our hero(villain) chose to be reborn and tricked the god by asking for a System that would help him reach immortality. Join Arthur’s journey of redeeming himself and rebuilding the world that is destroyed while uncovering the mysteries behind the apocalypse. What to expect from this book? 1. Competent MC who is not a beta 2. Harem done right - a harem not done right can be frustrating to read, but when it is done right, it can be so refreshing 3. Kingdom building - Who doesn't like kingdom building? 4. Action - Both killing and action with our gorgeous sexy Female leads (yes, that action) 5. MILFs!!! What not to expect from this book? 1. Rushed Plots 2. Logic less Face slapping ( Of course we have face slapping but characters will have human level IQ) 3. Mild gore and less blood ( This book is r18 which contains extreme violence and explicit sex scenes)