The beginning is always from "that day".
A new, unique love story of a high school girl and a nurse, brought to you by Liberum's Love Series!

Tsubaki Shoka, who suffers from severe menstrual pain, is a high school girl who regularly rests in the nursery as her period approaches.
In the nursery she heads to, her beloved thirtysomething school nurse, Kitagawa Rio, is always waiting.
However, Rio is a genuine pervert who has a fetish for women's periods.
He calls Shoka "Lady" and openly adores her without hiding his peculiarities.
It may be a love story that's a little different from the picture-perfect romance, but the moratorium that will eventually end is an irreplaceable time just for the two of them.