The 99-year-old retired teacher grandma is the most inconspicuous person in the community. Her greatest pleasure every day is sitting downstairs feeding the cat and watching the young people coming and going. Young people treat her like a tree hole, complaining to her about workplace infighting and emotional troubles. Grandma always listens with a smile and occasionally gives a candy. Until one day, a young girl who had been subjected to domestic violence for a long time was desperate with her child in her arms and hid behind her. The old man, who was usually trembling and seemed to be about to collapse at any time, slowly pulled out a rusty iron crutch from under the wicker chair and blocked the entrance of the alley: "Don't be afraid, girl. When grandma was young, she killed three Japanese."
