Yumenosaki Private Academy, a school located on a hill facing the ocean. Specializing in boys' idol training, the school has a long history of producing generations of idols for the entertainment world out of the young men overbrimming with talents, like the shining stars in the sky. Due to "special circumstances," you are a transfer student at the school, as well as the only female student there. In fact, you are chosen to be the very first student of the "producer course," and your task is to produce these idols… We hope you will enjoy your journey with the idols you meet at the academy, as well as the vigorous ensemble that together you will make. (Source: Ensemble Stars! Wikia)

Goku and Kuririn are given an assignment by Kame-Sen'nin: "Retrieve the sleeping princess from Lucifer and I will take you as my students." But the mission proves to be more perilous than originally thought. (Source: ANN)

When Mizuki Hijiri transferred to a new school, all she wanted was to live a normal school life, but that did not prove to be the case when she met the infamous Hero Club. All of its members are boys suffering from various types of chuunibyou—Yamato Noda is a righteous hero, using his athletic abilities to perform noble deeds and protect others; Kazuhiro Nakamura claims to be the reincarnation of "Touga Ryushouin," the result of the forbidden union between a demon and an angel; Tomoki Takashima is a pretty-boy otaku whose one true love is the 2D anime girl Sora; and Rei Tsukumo plays the role of a schemer, covertly pulling the strings. Dragged along as the newest member of the Hero Club, tepid Hijiri can't obtain the normalcy that she desires. But even so, despite their various quirks, their bonds of friendship are real; Hijiri's life can only get more exciting when she joins in on their delusions of grandeur!

These events occur in Westland, New York, during the 21st century. With a sharp knife, a murderer is indiscriminately killing people… A girl witnesses one of these murders, and the knife is turned on the helpless girl shaking with fear. Meg returns to this town with Joe to celebrate the “birthday” of Shirley, who used to live with Meg. Orphans, they had decided that the day they first met would be her birthday. In the past, Meg had taken care of three little children, including Shirley, just before meeting Joe. The children were then adopted by a police officer, Sam. He possessed a strong sense of justice and they are supposedly living happily together now. Meg and Joe happen to help a person and receive a reward. They buy a present for Shirley with the reward money and go to meet Sam. However, they notice him acting strangely. Upon questioning him, he explains that Shirley was assaulted by a murderer and seriously injured. Joe says to the grieving and angry Meg, “Let's exact revenge on the murderer for Shirley.” However, the murderer gradually approaches them from behind. The cruel black eyes fall on Meg and Joe… To make matters worse, a dark plot casts its shadow over Meg, Joe, Sam, and the whole town.