The Boundless Ring's Champion Unleashed in Another World

In a modern city constantly invaded by "Dark Demons," waves of brave warriors emerged to protect the Earth. However, Aiden, due to his lack of abilities, was unable to become one of them. Instead, he worked as a "cleaner", clearing dungeon remnants. One day, during a routine cleanup, he stumbled upon a myterious ring that allowed him to travel between worlds. with this newfound power, Aiden embarked on a journey to grow stronger, striving, to become a warrior in the real world while gradually uncovering the hidden forces behind the "Dark Demons" threatening his reality.