The semi-coherent adventures of two teenage intergalactic private eyes, Kei and Yuri. Members of Trouble Consultant team 234, their code name is 'Lovely Angels'. However, they're better known, universe-wide, in fact, as the 'Dirty Pair', a moniker they're not fond of. Their arrival at the scene is always a source of hope and dread, since they always solve the case, but wherever they go, something gets destroyed, up to and including entire planets. Luckily for them, but not so much for the universe, there's typically some extenuating circumstances that support their oft-uttered phrase, "It's not our fault".