DEFILED WORLD : THE FEELING OF POWERLESSNESS

Mikki who is blessed with a weak body, started going through trouble mainly because of his best friend Rex who is like a brother to him, later he finds himself some friends and a girlfriend whom he considered as his own family as he was an orphan. One day everything will turn upside down and every single one whom he cared about were killed except Mikki and his girlfriend but they were about to die but a miracle happened and Mikki saw many unexpected and unbelievable things he never would have believed if he didn't see with his own eyes. After that Mikki and his family got a second chance at life which he thought of as a blessing but that was not the case.
What will happen to him in his next life?