The drops in all of the dungeons of Cyclo have mysteriously disappeared! Clint the Dungeon Chief tasks Ryota with finding a solution. Having a hunch that the root of the problem lies in Nihonium, Ryota goes with Alice to conduct an investigation. Waiting for them there is the dreaded Dungeon Master of Nihonium…!?

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?!

Ryota Sato finds himself transported to a world where everything drops from monsters in dungeons. He and his Ryota Family live their lives venturing into dungeons to sell monster drops. But one day, after rescuing the city of Indole from poverty, Ryota runs into a mysterious girl in the dungeon Aurum. “A monster?!” “Nope! I'm no monster. My name is Aurum. I am Aurum!” Who is this unknown girl, who shares a name with the dungeon she appeared in?!!

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, beautiful girls and women gather around Ryota, and his income also rapidly increases! But, even more incidents are happening in this other world full of benefits…?!

Ryota Sato gets the surprise of his life when he's suddenly transported into another world and nearly clobbered at the hands of the young, pretty adventurer Emily Brown. This new world revolves around defeating monsters and profiting on whatever they drop—food, money, items, etc. Unfortunately for Ryota, he has no skills to speak of...until he learns he has the ability to get rare drops! Suddenly his luck turns around...or does it?

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 Sato finds himself transported to a world where everything drops from monsters in dungeons. While his level is capped at 1, his greatest weapon is his unique skill that allows him to get drops that would otherwise not exist. With it, he trains, makes money, and more! With his reliable friends and Ryota Family, he becomes a major force known far and wide! Meanwhile, a young man named Cell Stem comes to the town of Cyclo. An admirer of Ryota's, he uses his power to the fullest-and informs Ryota that he has become... Cyclo's Dungeon Association chief ?! How in the world did that happen?! And what exactly happened to the last person who had the job, Clint?! Find out in the newest chapter of Ryota's adventures!