It is a rainy day. Tsukasa is working on paperwork while looking out the window. Even as the boss of the organization, he didn't realize there would be this much paperwork to process. '...Watching the rain reminds me of him.' He thinks of the day he met Rui, who has been with him for 10 years. That day, seeing Rui on the rooftop in the rain looking so much like himself, he had called out to him as if possessed. 'If I hadn't spoken to him then, the Rui of today wouldn't exist.' Without Rui, this spy life would have been much harder. He was the one who stayed by his side through killing others and facing his own near-death situations. Honestly, Tsukasa admitted to himself that he was a coward. He had a past of always hiding behind others, unable to step forward himself. If he weren't in this boss position, he would still be living that life, constantly walking on eggshells. He stops his daydreaming and resumes writing the documents for his subordinates when he hears a knock.

Knock, knock—

Boss, are you awake?

It was Rui's voice. What could have brought him here suddenly past midnight.

No, I'm not asleep. ...Come in.