魔人侦探食脑奈罗

The whole anime tells about the brain-eating brain-eating creature Nairo, a mutant creature in the Demon Realm who uses "mysteries" as food, and eats up all the "mysteries" in the Demon Realm. Afterwards, he turned to the world to find a series of stories about more extreme "mysteries". The so-called "mysteries" are actually malicious mysteries that will generate a lot of energy after being solved. Nairo's food, and "malicious mysteries" refer to incidents full of hatred ranging from small pranks to murders. When Nairo came to the world for the first time, he met Katsuragi Yako, a high school girl whose father was killed. The true face forced Yako to become his agent in the world. After that, Yako not only successfully cracked the truth about his father's murder, but also opened a detective agency with Nairo. Began to become interested in the "mystery" and took the initiative to take action, and Nairo also began to recognize her ability, but every time she solved the mystery, she still killed Miko