An accident happens, and you guys we're somehow killed but later resurrected, healed from ALL mental and bodily harm(known or unknown) with a perfect genetic structure at prime condition.
Upon waking up, you get an instinctual knowledge that you are immortal with the passive ability to grow stronger the older you get(Age Empowerment) with a one time ability to customizie your immortality with 3 physical, and mental powers, and 2 street level growth type of ability in order to begin your journey into eternity.