Isekai Kaeri no Moto Yuusha desuga, Death Game ni Makikomaremashita

Synopsis

In an era overtaken by dungeons, hunters who make a living by conquering them have risen to prominence. After killing the demon lord in another world, the former hero Yuuki Rento returned tired of wars and vowed to spend his remaining life peacefully playing video games. However, when his friend discovered his identity and dragged him into the job of conquering dungeons, his overpowered abilities quickly become known across the world. A refreshing fantasy where the hero who once saved another world now dominates with his overpowered abilities! During a school excursion, Kaito Ise and his classmates find themselves in a deadly game where only one can survive. Unbeknownst to the organizers, Kaito is no ordinary participant—he is an 'isekai returner' who spent a decade battling fierce creatures in a fantasy realm. Despite his youthful appearance, he possesses unparalleled strength. After swiftly defeating his opponents, Kaito yearns for a quiet life, longing for normalcy amidst chaos. However, tranquility eludes him as new challenges emerge, disrupting his desire for peace and quiet. Starting today, I'm Land, and I'll be working at 'Powson', Nice to meet you. In a town far from the royal capital Apollonia, there was a 24-hour magic tool shop (convenience store). It was a convenient place for adventurers on expeditions to restock items, potions, and weapons without worrying about the time. Land, a new part-time worker at the magic tool shop 'Pawson' (with an hourly wage of 900 Nils), had only been working there for a week. Unable to memorize the massive manual, he was causing trouble for his younger, more experienced colleagues. His dream was to travel the world leisurely in his old age. However, he was on the verge of being fired from the part-time job that was supposed to help him achieve that dream. Today, he messed up a customer's order again and got scolded by his senior coworker, Rick... But this seemingly incompetent part-timer had a surprising secret... After being suddenly summoned to another world and saving that world from a crisis, high school students Wataru and Rumi have safely made it back to the real world. But the real world has been completely transformed! Dungeons are popping up and people have awakened their skills… It’s as if the real world is turning into the world they just left behind… A dungeon fantasy story where the returnees from another world, the tamer Wataru and his familiar Rumi, mow down everything in their way as the strongest combination that is closer than childhood friends but not quite lovers!