Haruka Nogizaka is the most popular student in the prestigious Hakujo Academy, possessing unparalleled beauty, talent, and influence. Unbeknownst to her fellow students, however, she keeps an embarrassing secret of being an otaku—something that can potentially destroy her elegant reputation. Unfortunately for Haruka, an encounter with the timid Yuuto Ayase in the school library spells the end of her well-kept secret. However, the two reach a mutual agreement with Yuuto promising to keep Haruka's secret, sparking an unexpected friendship between them. Nonetheless, with Haruka's status as the school celebrity and her friendly relationship with Yuuto, both of them are bound to be the subject of gossip everywhere they go!

In a story set years in the past, Himura Yuu is a studious and diligent young man intent solely on maintaining his top academic position at Otowa Academy. One day, he meets a mysterious girl named Amamiya Yuuko, who, to his surprise, recognizes him. Memories of a distant childhood, memories rather left forgotten... meeting Yuuko again will force Yuu to confront the regrets and sorrows of their collective pasts and presents. In the present, Kuze Shuuichi may seem like a womanizer, but upon closer inspection, is a man who would rather be left alone. Hayama Mizuki, however, is not the type of girl who would let him be, especially after hearing the beautiful sounds of his violin performance. As Mizuki attempts to become closer to him, Kuze attempts to push her away—the tale of their budding relationship is darkened with undertones of an imminent tragedy.

For this year's Nadeshiko Festival, Sakura Kinomoto's elementary school class is presenting a play. She will portray a princess who struggles to respond to the love confession of the neighboring country's prince. Sakura empathizes with her character all too well, since she herself still owes an answer to the boy who confessed his love for her four months ago. When cousins Shaoran and Meiling Li return from Hong Kong to pay a surprise visit to their friends in Japan, Sakura receives further encouragement to finally declare her feelings. However, she is repeatedly distracted by a presence reminiscent of a Clow Card as well as unexplained disappearances around town. Eventually, Sakura learns of another of Clow Reed's creations—the Nothing—which was formerly sealed away beneath the magician's old house. It has power equal to all 52 cards Sakura possesses, and furthermore, it wants to take those cards away from her! Objects, space, and people disappear from Tomoeda with each card that is stolen. Sakura sets out to capture the Nothing so everything will return to normal, but what must she sacrifice in the process?

Delinquent Juu Juuzawa is a lone wolf who does not see much use in befriending people. So when a girl named Ame Ochibana claims they are linked together from their previous lives, he is highly skeptical and doesn't want anything to do with her. Even stranger is that her fondest wish is to be his servant. Thinking that Ame must be delusional, he tries to distance himself from her. But when a classmate is murdered, Juu instead decides to keep her close, believing the strange girl to be the culprit. However, her intelligence and skill begin to prove invaluable as the two begin working together to solve the murder. Denpa-teki na Kanojo weaves together a story of love, loss, and devotion, showing that allies can be found in the most unlikely of places.