Modern-day Japan, Osaka.

Having just finished a major job, Reishi stepped outside for the first time in a week.

He usually handles his shopping through online grocers, but after being cooped up for seven days, even he found himself longing for the sun.

Walking toward the supermarket with practiced steps, he heard angry shouting erupt from a back alley.

For someone like Reishi, who lives in the underworld, such sounds are more common than the rice he eats every day.

He cast a fleeting glance toward the noise. There stood Guest, shielding a woman and her child, facing off against a street thug brandishing a butterfly knife.