kurumi, taught by her parents that a wife's duty is to serve her husband, was kicked out of her home due to her jealous husband's misunderstanding. wandering aimlessly in the cold, she spent the whole day standing in a park until a man, suspicious of her situation, kindly took her in. the man, sensing her circumstances, even offered her an empty room. kurumi, drawn to his sincere and kind demeanor, which was the opposite of her husband's, offered her body as a token of gratitude and, as a way to spite her husband, indulged in infidelity to repay his kindness.