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".