The joke that never gets old is watching Masato desperately try to be the hero while his mom casually obliterates every threat before he can land a single hit. Every dungeon crawl becomes a humiliation comedy where the most powerful person in the party is the one person he's trying to escape from. It's the kind of show that knows exactly how funny it is to make a teenage boy's worst nightmare, his mother being better at something than he is, into the actual plot.
Masato expected a normal high school life until a government experiment rips him into a fantasy RPG world. His worst nightmare comes true when his mother Mamako arrives right behind him, transported by the same program. While Masato dreams of becoming a legendary hero and impressing cute adventurers, his mother has other plans: she's determined to protect her son at all costs, and she does it with overwhelming force. The problem is that Mamako is absurdly broken. Her dual-wielding technique hits every enemy multiple times, her stats dwarf everyone else's, and she refuses to let Masato do anything dangerous without her constant supervision. Every dungeon becomes a comedy of errors where Masato tries to prove himself while his mom steamrolls through monsters and embarrasses him in front of potential allies. This is a show that mines humor from the eternal struggle between a son desperate for independence and a mother who can literally destroy armies before breakfast. Fantasy adventure meets domestic comedy, with plenty of action and chaos thrown in for good measure.