Meth-E-Meth - Kenji Tsurubuchi

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Résumé :
Long ago, humanity discovered the weapons later known as Autoscrolls-and the Oath-Making technology that allows command of them. In modern day Japan, not only have Autoscrolls become a part of everyday life, but Oath-Making is now a systematized science. When high school student and scroll enthusiast of the Oath Club Kyouta Yuzuki gets into an accident after finding a mysterious scroll, his new transplanted Oath-Heart turns him into a new being!...

Sommaire:
Long ago, humanity discovered weapons called golems and developed the means to command them: Oath Magic. The dolls quickly grew to be a part of everyday life under a new name-Autoscrolls-and Oath Magic became an academic discipline. Ordinary high schooler and oath club member Kyuuta Yuzuki specializes in writing oaths, but when a strange scroll falls from the sky, curiosity gets the better of him. He places the mysterious item in an Autoscroll...which suddenly takes him out with a lethal attack! Kyuuta miraculously awakens, only he now has a most unusual heart in his chest, a new protective classmate, and two organizations showing keen interest in him......