At night, in the haze-shrouded new Taipei metropolis that combines modern and retro industrial styles, on the large terrace on the top floor of a black 12-story commercial building, a young-looking female messenger of the underworld - Scar, fell from the sky and stood on the terrace. On the previous roof. Beside the low wall of the terrace, a few empty beer cans that had just been drunk were scattered on the ground. Next to it was a bald and fat middle-aged male employee - Can. With his back to the messenger, he climbed up the low wall of the terrace tremblingly.