C259 Murder in the okinawan chamber of secrets

Everyone walked to the corridor.

Luo Chen rolled his eyes and said: "I knew this guy didn't believe you, why don't we make a bet? If I guessed right, you'd call me Big Brother, and if I guessed wrong, I'd call you Big Brother!"

"Really?" Conan asked doubtfully.

Luo Chen patted his chest, indicating that it was a deal.

Conan thought about it and knew it was not such a coincidence. He nodded