A slacker who constantly says, "I'm outta here," somehow gets bound to a "Get Stronger by Running Away" System. Forced to trick people, flee, and save the universe along the way across countless civilizations, he's also pursued relentlessly by a cold, aloof female enforcer.
But when they discover that the "civilization selection" system is itself a conspiracy, and that true darkness is awakening in the depths of the universe, the ultimate destination of slacking off turns out to be saving the entire universe.