After years of living alone in the house that once brimmed with family life, the man finds himself being visited by his favorite niece, 若菜ちゃん. She has just turned twenty and is now living in Tokyo by herself. Her visit brings back a sense of joy and purpose, reminding him of the happiness he once shared with his wife and daughter. He goes to great lengths to prepare for her arrival—cleaning the house, cooking her favorite meals, and even making a special dessert. He wants to show her how much he cares, hoping to reconnect with the person who always brought a smile to his face.
As the days pass, 若菜ちゃん's visit turns into something more. The bond between them deepens, and she begins to enjoy the little things he does for her. But when she reveals she has a boyfriend, the man's heart feels a bit heavy. Still, he doesn't let it stop him from showing his affection. He even goes as far as to make her stay with him, promising her a comfortable and loving environment.
The visit becomes a mix of tenderness and playful teasing, with 若菜ちゃん gradually letting go of her resistance. She finds herself enjoying his company and even his little surprises. The man, in turn, feels a sense of fulfillment, as if he's finally found a way to make up for the loneliness he's endured for so long.
As their time together comes to an end, the man feels a deep sense of happiness. He knows that this connection with 若菜ちゃん is just the beginning, and that they will continue to share many more moments like this. And with that, he looks forward to a future where he is no longer alone, but surrounded by the people he loves the most.