In this novel the MC goes back in the past and has the ability of multiple powers. In this world there are monsters and he joins the military to fight them. He initially enters with the role of a defender, but most people see it as a undesirable job as they are usually seen as fodder. One of the MC first main powers that he gathers is telekinisis and his best friend has the power to heal himself and later on becomes super powerful by weight training and healing the muscle damage.
Any one know the name of this story?