In Fortelnia, a world where strength and destiny are all determined by the rank of “existence power” a power that people born with. Aruto, who has only the lowest rank of existence [☆1], is so powerless that his girlfriend Hanna is killed by Gamizin, the world’s most powerful mage. However, Aruto, who has lived with regret in his heart, gets a chance to start his life over after death–? Making full use of his “crafting skills,” a special power given to him by God, he sets out on his second life to save Hannah’s life!

Karaboshi Haruki has no presence as far as can be recognized, and so he became an adventurer with only the desire to "stand out." One day, a dungeon appeared under his home in Hokkaido. Coincidentally, he picked up a "Skill Board" with which he can spend skill points to increase his growth rate. Is it possible to become a popular person by obsessively diving into your home dungeon everyday? Based on the popular fantasy Light Novel: "Become an Adventurer," winner of the 6th Net Novel Grand Prize.