One winter day, Airi accidentally causes her fiance's death during sex. Overwhelmed by shock, grief over losing her husband, and criticism from her in-laws, Airi becomes emotionally numb, feeling like an empty shell.
Noticing Airi's state, her fiance's subordinate, Hajime, comes to comfort her. As they talk, Airi, consumed by self-destruction, ends up having sex with him. Driven by loneliness and a need to fill the void, she engages in intense, uninhibited sex despite its inappropriateness.
"I'm really terrible," she thinks as she has sex in a frenzied manner, repeatedly causing Hajime to climax. She wonders if he'll also die, but at this point, she doesn't care. All that matters is surrendering to pleasure and escaping her reality, even if it's with someone who evokes no special feelings and with whom she has no future. The content may vary depending on the distribution method.