Dragonoids: League of Myths

This is the story of "what if the side character is the main character."
Giljen is an unfortunate human, who went missing for four days... And within those four days, a lot of unbelievable turns occurred in the place he got trapped in.
The only way to got out therein was to fulfill the quest.
In his return, the myths that supposed be in only myths will set forth with assistance.

This is the story of a side character, who is the main character at the same time.