Izumi was born in a family of celebrities. His father is a singer, his mother and artist, his older brother the lead vocalist for the popular band Crashers. Izumi himself, however, is just a nerdy college student. He loves the manga "Magical Girl Lala Lulu" and dreams of becoming a manga writer himself. One day he is roped into filming a commercial where he wears a dress. Another actor on the set, Ryoma Ichijo, mistakes him for a woman and falls in love at first sight. As it turns out, though, they met ten years in the past. And Ryoma feelings don't change when he finds out Izumi is a boy.
High school freshman Yuuta Togashi was once a "Chunibyo patient" i.e. an overly self-conscious middle schooler. He wants to bury this embarrassing past and begins a new life in high school unsuccessfully. His classmate Rikka Takanashi, a "current" chunibyo patient, has found traces of residual symptoms on him and used the fact to force Togashi "making a contract" with her.
The relationship between Yuuta and Rikka starts to develop slowly in their own unique way as they begin to live together with Kuzuha under one roof. However, "chuunibyou"-plagued Satone, Yuuta's old acquaintance, showed up in the most unexpected place and time; challenging their budding, yet fragile relationship. Meanwhile, the rest of the Oriental Magick Napping Society in Summer club members continue to expand their own unique selves and relationships with one another.
High school sophomore Yuki Hase noticed that Kaori Fujimiya, his classmate, was always alone. He tried to start a conversation with her but was turned down: "My memories of friendship can last only a week," she said. Despite of knowing this shocking truth, Yuki keeps trying to be Kaori's "new" friend every week.
In a future not too far away, androids that look exactly like humans begin to spread across the world. The android production company SA Corp. produced Giftia, a new kind of android that has the most amount of emotion and human-like qualities out of any other model ever seen. However, due to problems in technology, the androids have a service life, and once they pass that, it gets pretty bad. For this reason, SA Corp. creates a terminal service in order to retrieve Giftia that have gone past their service life. A new employee at the terminal service named Tsukasa Mizugaki forms a team with the Giftia Isla to retrieve the other androids.
In 2018, humans and wizards live together in Tokyo. Police continue to protect order in society, but wizards are tried according to magical law, in special courts defended by wizard barristers. At age seventeen, Cecile has just become the youngest wizard barrister, and begins work at the Butterfly Law Offices. While she hasn't realized it yet, she has tremendous magical potential.