Somnia, where the sky is always dark, is it worthwhile to save a world like this?

It's year 22XX. Somnia is a very big metropolis, the Queen of the world. It's usual to see people dying in the streets, that's the real world, so who cares? If you have been born in a nightmare, you never wonder why life is that way. But this city has two faces, there is an even darker one in the moon shadow. An entire world for people who want to make their dreams come true, people who dream for eternal life. Slaves of Somnia haunted by their own desires. They take other people's lives in order to make theirs longer, like this city does.

Nobody can escape, there is no way to run away.