The moment Ryuu Davis touched the doorknob of his newly acquired apartment, he could already sense intruders. Working as an undercover agent for years made him vigilant of his surroundings. Being cautious is in his blood.
He opened the door to his apartment, his eyes and movements were alert and ready for any attack. But the moment the door opened, he was confused that the lights were on. If danger awaits him, the lights should be off, right? But it is not. Or maybe the intruder forgot to turn off the lights?
He is sure that the intruders were still inside his apartment. Even though the surveillance footage of his apartment that is connected to his phone doesn't show any intruders, he could still tell that someone invades his apartment. And the fact that they could hack into his apartment's security system made him think that they are not just simple burglars.
