グレイプニル [Gleipnir]

A darkly inventive sci-fi horror manga from Kōdansha, Gleipnir (2016–2023) follows a high school boy who can transform into a monstrous, zippered beast—a power that draws him into a deadly game of wish-granting coins and monstrous transformations. Written and illustrated by Sun Takeda, the series blends body horror with psychological tension as its reluctant hero partners with a mysterious girl to uncover the truth behind their abilities. Over its 14-issue run, Gleipnir earned a reputation for its visceral art and morally complex characters, making it a standout in the modern horror-action genre.