Story concept

What if there was a second chance in life? A second chance for people who were unhappy with their life, and decided to end it. What if there was a way to live again, but not having to deal with the burden of society and any other stressers?

Well, you're in luck! For those who kill themselves, there is an option to live normally in the world, but no one can see you other than those who too have met the same tragic fate. You no longer have to worry about money, pressure, or anything you worried about when you were alive. But, it will take some adjusting, in order to use things that you want like objects, doors, you will need to collect energy.

How do you collect energy? By killing of course! You need to kill monsters in order to collect energy, you will be given a hair pin to store it, a weapon, and a plush to accompany you!

But what if this isn't what you want? What if you want to just move on and become simply nothing?

Unless you can find a way, you're stuck here forever.