Gleipnir

is a Japanese manga series written and illustrated by Sun Takeda. It was serialized in Kodansha's seinen manga magazine Young Magazine the 3rd from October 2015 to April 2021, transferred to Monthly Young Magazine, where it ran from May 2021 to April 2023. Its chapters have been collected in fourteen tankōbon volumes as of July 2023. The manga was licensed by Kodansha Comics in North America. An anime television series adaptation by Pine Jam aired from April to June 2020. Plot High school student Shuichi Kagaya receives the ability to transform into a giant monstrous dog. It resembles a mascot costume with a zipper on a back and a big smile on the front. He meets a normal girl from the same class, Claire Aoki, whose sister, Elena, was responsible for killing their parents. Characters A high school boy with the ability to transform into a dog-like mascot costume, complete with a large pistol on the belt and a zipper up his spine which, any female human climbs inside his empty body, increasing physical and mental abilities. When transformed, Shuichi gains the physical ability of a human at peak levels of fitness, strength and endurance, and when paired with a partner inside him it becomes superhuman. He retains some of his abilities in his human form such as a sense of smell even keener than dogs. His human appearance is average with the exception of a noticeable scar around his neck after fighting with Elena.