Hard Nut!

Crime, Mystery

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.

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