The prep school student Yuichi Mamiya’s father remarried suddenly!
The new family is three people … A mother, Mifuyu who gives off the color of mature adults, a girl-in-law’s eldest daughter, Natsuki, a sober but busty second-hand girl Akiba.
Such sexual desire for three mothers and daughters can not be suppressed …

One day, Yuichi gets the mysterious penlight which makes the other party hypnotic state only by showing the light!
First of all, I will use the beautiful winter of my mother-in-law as the penlight’s test stand and let me do the odious act that can not usually be done.
And my sister-in-law, Natsuki and Akiha, also open their bodies to Yuichi with hypnotic effects.

To become a true family with Miyuki and others, Yuichi repeats the days of interacting with a hypnotic mother and daughter.
Yuichi and mother and daughter are connected more deeply in pleasure …