It's a world of fantasy - magic, swords, war, a demon lord. But Felix didn't really want any glory. Maybe after a long time. But it was a much better idea to grow slowly and hide in the corner, and live a comfortable life. Once he turned 16 and unlocked his inner potential, he could slowly build his strength, in a non-descript corner of the empire.

But then, the Battle of the Crimson Plains happened. Almost all of the human forces got wiped out.

Felix got drafted. He got sent to the front lines at 16. This was a terrible turn of events. He got attacked on his own by a demon mage, and dropped deep, deep into the earth.

I wonder what he will find down there?