Denpa Onna to Seishun Otoko, No Game No Life Recommendations
The main character in Denpa Onna really reminds me of Shiro from No Game No Life not only their blue long hair but also their overall appearance, behavior and even voice! While both are still different kinds of anime the characters to resemble each other quite a lot!
These anime both involve a young female kuudere who lives in her room away from other people and spends her time in her own world. They are well known in their communities, but they are only idolized by a few individuals and are resented by far more. The protagonists of these series are older male relatives of these girls who have black spiky hair. Although these may seem like they are set in our own universe at first their worlds do have supernatural elements of differing degrees.