Jun Narita

Butt Detective's partner who disappeared 10 years ago suddenly reappears. He receives a mysterious message from Suisen and soon finds himself embroiled in a case of counterfeit art involving a massive plot to shake up the art galleries around the world.

The magazine "Cafe Guide" comes to "Cafe Lucky Cat", located on the first floor of the Butt Detective's office, for an interview, but the owner hurts his back, so Butt Detective takes over as owner for the day. The interview was going smoothly when a huge amount of sweet potatoes, eggs, fresh cream, and butter that the owner had mistakenly ordered arrived at the shop. Butt Detective and his team are surprised by the mountain of ingredients. In order not to waste the ingredients, Butt Detective decides to work with everyone in town to make a super-sized sweet potato.

The hero Toto has talent, but his shyness has prevented him from forming a party. As he languishes in the town of origins, three beautiful women—Ciel, Anemone, and Goa—invite Toto to join their party out of the blue. Toto gears up to begin the journey, but unbeknownst to him, all three women are plotting to kill him for their own reasons!