Wife Ai's birthday. As usual, the couple's daily life lacks extravagance but is filled with warmth. However, one day, a man suddenly appears who threatens to disrupt their peaceful routine. He is a powerful figure in town and the man who helped her husband secure his job—an important benefactor. His arrival completely changes the dynamics between the couple. Unconcerned with the celebratory atmosphere, he stands up holding a drink in hand, leaving the couple bewildered and uneasy. They begin gossiping about him behind his back, but those words eventually reach his ears. In an instant, the tranquility of their everyday life comes crashing down.