View source for Mountain Witch's Cutlery

==== Part 1 ====
Agasa takes the Detective Boys camping, they end up being stranded in the middle of the woods. They decide to ask for lodgings from a house owned by an elderly woman named Iwae Tanaka. At the same time, Akane Ooba and her two hosts, Raito Adachi and Fuuga Kahara, also request for lodging and Tanaka complies. That night, Mitsuhiko goes to the restroom but see's something horrifying causing him to run back to his room. Soon after they hear a woman scream and Ooba is later found with her throat slit open outside the house with Raito by her side.

{{InfoBox Crime
| crime               =
| image               = EP481-482 Case.jpg
| location            = Iwae Tanaka's house
| victim              = Akane Ooba
| age                 = 25 years old
| cause-death         = Slit wound on the throat
| suspects            = Iwae Tanaka, Raito Adachi, and Fuuga Kahara
| description         =
}}

The police arrive and investigate all the bladed weapons in the house. Mitsuhiko then exclaims that while heading back from the restroom, the knife he saw Tanaka sharpening is missing.