Eita enters high school aiming for the National University School of Medicine. Because of his parents' divorce—and his goal—he shuns anything to do with romance or love. One day, Masuzu, the school beauty with the silver hair who has just returned to the country, enters his life in a most unexpected way. Chiwa, his childhood friend since elementary school, will not let this go without a fight.
After a long and treacherous journey, our Hero finally arrives at the Dark Lady's castle only to find himself being asked for help. The Hero explains how the war that the demons have brought upon the humans have killed thousands and put more in misery. The queen of demons however argues that this war has made the human society band together as one and showed empirical evidence how it has increased population, increased production, boosted economy and improved society overall.
The sakura that bloomed year-round are now a thing of the past and Hatsunejima is now known as an island that shows that beauty of each season. 
In the future Japan has become a fractured country, and small towns now exist. The rulers of this world have the cursed power of Telekinesis. When an incident occurs, 5 children come to realize the world is not as it seems, and learn the bloody history behind this world. These 5 children unite and help the world as it falls into a downward spiral of chaos.
Plot Summary: As Nagi lost her mansion and properties in the last series, she has to live with Hayate, Maria and others in the old apartment which is left behind. Each episode will focus on a different character(s) and follow a different route for that episode.
Plot Summary: Nyaruko still wants Mahiro, as does Hasuta. Kūko wants Nyaruko, but believes both Nyaruko's and Mahiro's "first time" belongs to her. Yoriko (the mom) puts up with all of it and cheerfully runs the house where they all live. Mahiro just wants some sanity. He doesn't want to be the love toy of a Nyarlathotepan, Cthughan, or a shots-like Hasturan. He may or may not hold out.
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