Dazai Osamu is a mysterious man, always thoughtful, but extremely intelligent, paying detailed attention to his surroundings, always with his guard up.

He was sitting in the cafeteria underneath the Armed Detective Agency, at a table in the corner. He had already asked the waitress for a double suicide, but she refused, as always. Now, he was just sitting, silently sipping his coffee, thoughtful.

Until the cafeteria door opens, revealing a beautiful figure entering the establishment.