With a Magic Stone Implanted in my Chest, Who Do I Take Revenge On?

This world is cruel. Life is fragile, and the lives around us are constantly being lost. I was born in a glass cylinder, floating in liquid. Right, I was aware of myself. A green stone was implanted in my body, and when I recovered from having fainted, everything around me had turned to rubble. All the glass cylinders other than mine had burst, and no one was alive. A world completely devoid of living beings. First things first, I wanted to get out of there. All on my own, I went around the world, without knowing anything. I have a peculiar constitution, and am denied my death. Even so, I still wanted to be human. Desperately holding onto life, continuously struggling despite my po...