Rikka Takanashi is a teenage girl who possesses the strongest ocular power known to man: the Tyrant’s Eye. She's currently locked in a fierce war with a shadowy organization, and the fate of the world may hang in the balance with each passing battle... or at least this is what she believes. In actuality, Rikka is merely a normal high school girl afflicted with chuunibyou syndrome, a "disease" that makes one prone to delusional flights of fancy. Meanwhile former chuunibyou sufferer Yuuta Togashi is enrolled at the same school, looking to put his embarrassing junior high exploits behind him. However, when Rikka discovers his past life as the "Dark Flame Master", she uses this to her advantage to include him in all of her wacky schemes! With Rikka’s zany behavior dragging him further and further from normalcy, Yuuta must try to pull her back into the real world – or risk getting sucked into hers!
Haganai NEXT and Chuunibyou Demo Koi ga Shitai are similar because of their socially awkward characters who are just outright hilarious. The main charcters in these two series are just entering the world of high school and are attempting to find ways to find friends and abandon their socially awkward history. In the process of doing so, they come across a set of girls who are even more awkward then themselves and eventually form a club with them where we witness a load of hilarious events.