Despite his age, Jin is the strongest hunter. In his never-ending quest to earn enough money to feed his two cute housemates, he takes up his greatsword and goes out to hunt every day. One day, while chasing an onigiri he accidentally dropped, he trips and falls into a hole... that takes him to another world?! Many strange things await him on the other side... Elf girls? Legendary dragons? Oh, and he's still the strongest, even in these new worlds...?!

It's the end of the 21st century, and a strange plague called "Cagaster" has appeared. One-in-a-thousand people are infected—turning humans into monstrous cannibalistic insects. Two-thirds of humanity is decimated. 30 years later, young expert bug exterminator and mercenary, Kidou, and newfound friend, Ilie, struggle to survive in this brutal new world, all while delving into the mysteries of the plague and its origins.

Alfred Rindt is the strongest wizard. After taking a cursed arrow to the knee, he just wants some peace and quiet to heal. But, being a famous hero has its downsides. Everyone in the royal capital is demanding his assistance! Alfred decides he needs to get away from the hustle and bustle of the big city, so he takes a job as a village guard in the countryside. Will Alfred finally get the rest he so desires, or will the countryside prove to be just as lively as the city he left behind?

In this world, powerful creatures named Enemonsters have taken up residence. When one of these Enemonsters gets defeated, it transforms into a coin with immeasurable power—power that can be used to save a country, to bring about change, or simply... to win a high-speed race?? Meet Turbo, a Coinmaker, and Retra, a racecar driver. These two are bound by fate to save mankind. All they have to do is collect the “The Ultimate Seven” coins, win all the races, and become the best Coinmaker around. Will they be in it to win it, or will they stall out?