After dropping out of high school to care for his bedridden sister, Arthur's life was bleak, earning below minimum wage as a delivery driver.
One night, everything changes when he stumbles upon the World Travel System, a mysterious power granting him access to the multiverse.
Now, tasked with completing dangerous missions in different worlds, Arthur has the chance to earn incredible rewards—money, artefacts, and powers— that could save his sister.
But with every mission comes greater risks, and Arthur soon realizes that the system's missions are not so simple, where failure could cost him everything.
