Yuji, a young man who passed the university entrance examination and came to Tokyo from the countryside. In order to save on living expenses, he was introduced to a cheap apartment by his uncle, Saeyama, but he couldn't hide his confusion because it was so run down. However, he meets the widowed landlord, Yui, and falls in love with her beauty. Yuji is attracted to Yui's kindness, who keeps smiling and takes care of her even though she just lost her husband. One day, when I went to Yui's room, I happened to see Saeyama and Yui violently intertwined.