Boku No Kokoro No Yabai Yatsu summary: You are reading Boku no Kokoro no Yabai yatsu manga, one of the most popular manga covering in School life, Shounen, Slice of life genres, written by Norio Sakurai at MangaBuddy, a top manga site to offering for free. Boku no Kokoro no Yabai yatsu has 492 translated chapters and translations of other chapters are in progress. Lets enjoy. If you want to get the updates about latest chapters, lets create an account and add Boku no Kokoro no Yabai yatsu to your bookmark. A "fearsome psycho-thriller" centering on "the dark side of adolescence." The manga centers on Kytar Ichikawa, a person at the very bottom caste of his school, and who hides murderous impulse that lurks at the very bottom of his soul.