Ayu Okuma

At a hot spring inn on a high school school trip, high school girls discover a bag full of money that a yakuza lover stole away. A hitman who appears to recover money, and a homeroom teacher who is begged by another student. A crime comedy set in a hot spring inn where multiple motives are entwined and chaos causes chaos.

Kiyoka Kuromi, a housekeeper with a hidden agenda, is determined to create the "ideal family" at any cost. Assigned to the seemingly perfect Haibara family, she quickly bonds with them, but her obsession drives her to take increasingly extreme and unethical actions in her pursuit of perfection.