Keiko, who was frustrated every day because of her husband who often didn't go home at work, spent her days comforting herself with a sigh. One day, her son brought home a man named Hashimoto, who was her senior and became friends at his part-time job. Her mother, Keiko, was relieved to see her son, who hadn't had many friends until now, open his heart to Hashimoto, and warmly accepted Hashimoto just like her son. …. At one point, Hashimoto, who eavesdropped on Keiko and her husband's phone conversation, suddenly changed her attitude when she learned of her frustration with Keiko.
