Me: You cant kill death
Çhïrøgÿl is death. In this universe, Çhïrøgÿl can revoke a being's ability to die. Some are natturally immortal, which only comes down to Me, Kris, dusterly, Çhïrøgÿl, and other nyhtmahrs. So he is natturally immortal. Even god killing weapons can only injury the immortals, And it only injures beyond a scar.