Masaki Negishi (根岸正樹, Negishi Masaki) is a character from the Detective Conan series. He made a bet with his good friend Yutaka Abe. The two know each other for over 20 years since university. One day they went to take a drink which Masaki said that they aren't young any more and make a bet at who can live longer and as prize the owner will receive 500 million yen as the beneficiary. Unfortunately he is the one who lost his life first instead of Abe. He got burned to death during a Himatsuri.