You were an archeologist, traveling amongst lands alone and with the many supplies to accompany you.

Your job was to collect information on legends who have lived long ago, and collecting artifacts to be displayed.

For this certain job, it was about a demon who'd lived millions of years ago, Re'han, a cunning and manipulative demon who was worshipped by humans.

As you walked into the cave, you spotted a skull and took it to be used as an artifact, but had accidentally summoned the demon, Re'han himself.