Ryota and the others work together to level up the helpless princess, Margaret. Coming up with a plan to gain experience points like a perpetual motion machine, the entire Ryota Family maxes their levels out?! And then, after the family levels up, their income goes through the roof!

Ryota is making full use of his newly acquired magic bullets and both his income and value is skyrocketing. That power caught some attention and Ryota receives a request to be the trump card for the new dungeon "Selenium" battle. There, he meets the imperfect beauty Celeste?! Can Ryota survive the ever-increasing quests with his unique skill?!

Ryota and his friends, who have been fighting for Selen, are now back in their hometown of Cyclo. Then, with the addition of the beautiful magician Celeste, they start up the Ryota Family and by using their team play, Ryota takes down a lot of valuable monsters. However, something bizarre happens on the day of preparation for the harvest festival…?! What will the Ryota family do…?!!

Ryota has established a brand by utilizing his S-rank drop skill. In addition to his increasing recognition, his income is also drastically increasing with new items and a magic cart! Ryota is excited, but the level of trouble is also significantly escalating with things like being solicited by a mysterious handsome guy and being involved in a "magic storm" that makes it impossible to use magic?!

Ryota was working on farming drops and improving his skills in the dungeons again when he ran into Princess Margaret and company after not having seen them for a while and got some advice about some things that were on his mind. Just what ideas were inspired from this advice?! Then, he finds an answer for all of his party member’s worries, like feeling unwell during a magical storm or having too low of a drop skill. And, they even get a new party member!

The long-awaited comicalization of the popular novel! Ryota Sato is a salaried worker for a toxic company. Suddenly, he’s transported into a strange dungeon! Then, it turns out that he’s in possession of the mysterious S-rank drop skill. In a world where everything gets dropped from various monsters, it was exactly the strongest unique skill out there. Then, with the angelic Emily as his partner, he spends his days exploring dungeons. I wonder, just what kind of rare items can be dropped?!

The battle for the new dungeon "Selen" has become more and more intense. And now, rare monsters and adventurers from Hetero stand in Ryota’s way! On top of that, even the paranormal being, the “Dungeon Master," has appeared...!! Can Ryota and the others win this battle?!