Hereos: Live , Travel , Return and Die

this story involves 4 protagonists with different circumstances and values who will eventually meet.

A person came from back the dead who the public praises as a hero but they think don't deserve the title.A person who loses everything, who suddenly moves into a different world, can he find a new purpose in this new world?A person who is rejected by everyone in their world. after the incident, they possess another body from a story they wish to live onA person from a bleak future encounters an artifact that allows returning to the past. they swear on their life they will prevent the future he came from coming true.