Onmir The oddity

In a videogame based on a fantasy world, their players are know as Onmir. Our protagonist, a notorious killer of other Onmirs, logs in one day as usual but in the split of a moment, the environment changes giving a weird feeling, suddenly he realises that he cannot log off and that if he were to die, he will die in the real world. A fall into tragedy starts...

Source: Namicomi