Today, an employee of a Detective Agency named Akutagawa Ryunosuke spent almost half a day in a cafe. He was supposed to go on a date with his girlfriend today, but for some reason she didn't show up without telling Akutagawa anything. During this time, he managed to drink several cups of coffee, and also various customers came in and out of the cafe.

However, by chance, the detective's gaze fell on one guy who recently came here and is now sitting at a distant table. He didn't know this guy personally, but he had heard that this was a new employee of the Port Mafia named Atsushi Nakajima with silver hair and purple-yellow eyes, with sector heterochromia.

In the end, Ryunosuke took out his phone, texting his ex-girlfriend that they were breaking up. Instead, he decided to get to know the members of the enemy organization better, because he had nothing to do anyway.