Apocalypse: Call Me Master

Frank Parker is building a fortified base in the middle of the zombie apocalypse, and the people at the centre of it are women he recruits through something called the Maid Collection System. Each one he brings in forms a bond with him, and the loyalty runs both ways. He has already lived through this outbreak once. That time he was betrayed and died of it, and when he came back to the start of it he woke with the system and with a lightning ability. He goes out with the lightning and a mech suit. Inside the walls it is the maids' loyalty to him that keeps things running. He uses what he knows from the first time round to hunt down the ones who sold him out, and he is climbing from the very bottom toward rule over what is left. Then a zombie tide big enough to finish off what remains of the world starts moving, and at the same time the person who has been directing events from behind the scenes moves against him. Frank has to meet both with the people he has.