Virgin girls are pampered with smartphones allowed by the state, but it's definitely unmatched. As part of global measures to combat extremely low birth rates, the government has officially decided to distribute "event-enabled smartphones" to men who can become pregnant, an initiative currently being promoted in trials. With this, Nagata, a dull virgin student, finally obtained the long-awaited month-long event privilege. The first time he paired with her was Mitsuki Nagisa, a beautiful girl who had just transferred from another school. For some reason, she has a shadow, and indeed she has her reasons. Nagata, who knows nothing about such things, believes that an event will occur as a matter of course, so he approaches her and nurtures her in the name of an event, but... At that time, he had no idea that the meeting between him and her would be the catalyst for a major incident that would follow...
