Top 5 in Top 10 manga with dark content but extremely good should see once in a lifetime.
- Author: Izo Hashimoto.
- Genre: Dark, Martial Arts, Crime, Psychological, Reality.
- Synopsis: Shamo is a story about Ryo Narushima, a talented student about to enter the University of Tokyo, the most prestigious university in Japan. But one afternoon, he took a dagger, stabbed and killed his parents. The 16-year-old nerd killer was convicted and sent to a reformatory. Kenji Kurokawa, a jailed man who nearly assassinated the Prime Minister of Japan decades ago, is sent to a reform school to teach karate to its teenagers every week. He discovered Ryo's talent and taught him how to defend himself. Ryo survived and thanks to the minor protection law, released two years later, he used what he learned in the reformatory to torment those who had tormented him in the past.