JUKF-013 The only daughter of a single-parent household raised in a single-parent environment, Mari-chan is a serious girl who thinks deeply about her father.

Three years ago, after the mother passed away, the Takasugi family became a single-parent household with just a father and daughter. The father worked tirelessly for his daughter's sake, and Mari grew up healthy. The two lived happily together every day. However, Mari began to harbor feelings for her father that went beyond those of a parent and child. She would think of him, comfort herself, and try to calm the heat in her body. One day, Mari's repressed desires finally exploded!