Killing God who can't grow up?

Sam transmigrated into an 8 year olds body with the 'Killer system' everything was going great until... {Ding} [Congratulations to the host for drawing the talent: 'Age-defying lord' How can the almighty lord be held down by something like age, with this talent you will never age!] So Sam had to lead his summoned subordinates while never appearing. After all who would believe a 8 year old could kill this many people? Note: The cover isn't mine, if the owner wishes I can remove it.