The First One

It's about a man in his 30s almost reaching 40s that enjoys reading mangas and playing video games,but when money runs dry,he puts his game face on and gets to work as a mercenary.
This day of all days was odd,one of his contractors offered him a job with a lot of money on the line, and he needed to go to the caverns and find a mysterious tablet,he didn't thought to much of it,easy money he thought and took it.