What is the sword of Shan Yao, the mother-in-law of Conan, a famous detective?

Detective Conan's Sword of Shan Yao's Mother-in-law tells the story of grandma's grandson who went out for a long time and never came back. Conan and a group of his friends were on their way to camp when Agasa Hiroshi's car had a flat tire, so they stayed at the old woman's house.

Then one night, Yan Guang saw the old woman sharpening her knife. She thought she was Shan Yao, so she panicked and went to Conan to tell him what she saw, but Conan didn't believe them. Later, a little friend Conan died, and they began to reason.

Inferring the murderer's technique from the water depth of the inner fish tank, and then talking about the knife sharpened by the old woman, the knife with red handle is actually her son's knife. She often grinds that knife because she doesn't want it to rust, and she also expresses her love for her son.

Finally Conan solved the puzzle. The murderer was a Dalai Lama. But at the same time, he also found that Xiangyuan is elegant, that is, Shota Tanaka, the grandson of Yibo Tanaka.

A few days later. Conan, Agasa Hiroshi and the juvenile detective team had dinner in a restaurant and found an ordinary chef with a red kitchen knife.

Extended data

1, Tanaka Yoshikazu (74-year-old female)

Grandson Xiang Ya. She starred in The Sword of Shan Yao's Mother-in-law (TV 48 1, TV 482).

2. Conan

The real identity is high school detective Kudou Shinichi, who is called "Sherlock Holmes in Heisei era" and "Savior of Japanese police". He was ambushed because he tried to track down members of black organizations and was poisoned by the code name "APTX4869". Although he had a narrow escape, his body was reduced to that of a first-grade pupil.

Later, he asked Agasa Hiroshi for help. When his childhood girlfriend Mao Lilan asked him his name, he changed it to Edogawa Conan.