Kanmon Strait of Friendship and Murderous Intent (1) Meitantei Conan : Season 1 Episode 299

Kogoro has won another contest and so he, Conan and Ran go on vacation, where four friends recognize him as the famous detective Kogoro Mouri. He has dinner with them, which is interrupted by a rude man trying to buy one of the friends' businesses, but they refuse to sell.