Understanding Episode 855 of Conan: The Significance of Sonoko and the TV Station Incident

Understanding Episode 855 of Conan: The Significance of Sonoko and the TV Station Incident

Reader’s Question:
I heard that episode 855 of Conan, “The Mystery of the Disappeared Black Belt,” is a pre-story to “Crimson Love Letter.” However, I don’t understand the intention behind the line at the end about “being grateful to Sonoko” and the incident involving the TV station. Can anyone explain?

Understanding the