Nombre original: ハードナッツ！
Fecha de estreno: 20 de octubre de 2013
Serie
Tiempo promedio: 0 minutos
Géneros: Crimen, Misterio
Sinopsis: Kurumi Nanba is a student majoring in math at prestigious university. She's viewed as a weirdo due to her poor communication skills, but having a genius level intellect. Meanwhile, Tatsuhiko Handa is a young detective. Kurumi Nanba and Tatsuhiko Handa work together to solve difficult cases including a series of bomb explosions, a locked-room murder and corporate blackmail.