Nichijou, Chuunibyou demo Koi ga Shitai! Recommendations
Just like Chuunibyou demo Koi ga Shitai, Nichijou features a blue-haired heroine who is very sick and delusional. For example, Rikka Takanashi is convinced that she has magical powers, whereas high schooler Mio Naganohara believes she has a chance at winning the love of her life, Sasahara. Mio also draws sickening fanfiction of Sasahara in her school notebooks, much like how Rikka's friend Dekomori put together the fan-made magical compendium, Mabinogion.