Reimi, who works alongside her husband, was living a seemingly perfect life both at home and at work. The only thing not going well was dealing with her subordinate, Saotome, who frequently made mistakes. And as usual, while she was cleaning up after Saotome, this time she might have gone too far, causing him to become quite depressed. Feeling sorry for him, Reimi invited him out for a drink to cheer him up... but she had no way of knowing at that moment that this would be the entrance to a swamp she could never escape from.