[@Gareth]: Let's answer those in order.

1. Ah... Yes, I guess. But again, for starters? Low level stuff.

2. In short? You're dead. The light brings you back to life. Except... As a monster. In a fantasy world.

3. Source materials are Japanese light novels/web novels. There is no tag for those, but they have manga adaptations, so I used that instead.

Edit as an add-on to 2: Yes, pre-mortem is before death. Like how post-mortem is after death. Prefixes!