Based on a story I was writing, but might not anymore since no one cares about written works. In this world, there is a group of small creatures wearing loincloths. One day, they have to go to another dimension to retrieve some plot relevant device I haven't decided upon yet.

There is only one slight problem, the air in the other dimension makes them incontinent (I know I've used that idea before, but it's a good one), so they have to wear diapers. Mirin is not happy with this.

Also, she's wearing the diaper seen on the new character in MLP Friendship is Magic Season 6.