Ep. 1117: Conan investigates a murder at a karate dojo where instructor Ryota Goda is the prime suspect.

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Ran substitutes for injured instructor Ryota Goda during a children's karate class. Goda meets building owner Noriyuki Momohara, who complains about noise and refuses a lease extension. When lights fail, Goda goes to fix them, leaving Conan behind. A scream leads them to Momohara's room, where Toru Namisugi finds the dead landlord. Police estimate death occurred three hours prior. An open safe contains a lease contract. Conan notes a warm coffee machine but no cups. Namisugi, Momohara's high school friend and business associate, is questioned. Police find a gold golf club, but Conan doubts it was the murder weapon due to lack of swing space. Drag marks suggest the body was moved. Ran mentions missing shin pads, helping Conan solve part of the mystery. Police suspect Goda moved the body to use Momohara's face recognition to renew the contract. Goda claims his injured arm prevents dragging, but Chiba suggests using teeth and the good hand. The contract renewal date aligns with the time of death, implicating Goda.