From the Abyss: I Play Battle Royale in Abyss

In a world where every corner has been explored, there is only one place that still hides endless secrets - the unfathomable "abyss". A young man accidentally gets involved in a life-and-death game set in an abyss and is forced to become an "escapee." He will play the character "Regg" from the abyss and step into this unknown and dangerous territory. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.