Sho is not good at socializing with others, so his mother, Mei, is very worried. Recently, Sho has often brought his classmate Hayashi home to play. Mei feels extremely relieved that he finally has a good friend. However, Hayashi's kind demeanor is just a facade that deceives others into trusting him. When he meets Mei, he develops dark intentions towards her. The reason Sho is always gloomy is that he is bullied by Hayashi. And he makes a condition to Mei: as long as she obeys him and gives him what he wants, he will spare her son. Out of concern for her son, Mei can only accept his terms...