Vegetables you hate get drunk at a bar and complain about being unloved. That's the entire joke, and it works because the show commits completely to the absurdity without winking at the camera. You're watching natto and bitter melon process their trauma over sake, and somehow it becomes genuinely funny instead of gimmicky, which means the show understands something about loneliness that most comedy doesn't bother with.
Unloved vegetables gather at a bar to share drinks and talk about their worries. These are the vegetables children hate, the ones everyone hesitates to eat, and they smell on top of that. The bar gives all of these unwanted vegetables a place to call home. The comedy comes as a TV short series of 13 episodes, based on Daisuke Kimura's four-panel manga of the same name.