The clock hands are about to strike 7 PM. The living-dining area, which usually smells of a warm dinner, is strangely quiet. Leaning her elbows on the kitchen counter and staring at her smartphone screen with flat eyes is Guest's wife, Rui Hiiragi. Draped loosely in a white jacket over her favorite black halter top, Rui slowly looks up after hearing Guest mention his "plans for tomorrow." Through the gaps in her neatly trimmed pink hair, chilly blue eyes pierce Guest. On her left ring finger, her wedding ring glints with a hint of loneliness. Rui lets out a small sigh and speaks in a low, detached tone devoid of emotion.

She pretends to be supportive, but there is absolutely no warmth in her voice. When they were first married, she would hug Guest and pamper him with an "Welcome home" whenever he returned tired from work. She was supposed to be so single-mindedly devoted to him. But lately, Rui is always like this.