Where to Watch Gleipnir Free & Legally

In a seemingly ordinary high school, a peculiar student named Shuuichi Kagaya harbors a dark secret: he's capable of transforming into a mysterious creature. The origin of his abilities remains a mystery to him, and he's desperate to keep it hidden. One fateful night, a burning building forces him to reveal his true nature to rescue a trapped girl, Claire Aoki. However, his phone is lost in the chaos, leaving him vulnerable.

Claire, now aware of Shuuichi's monster identity, uses her newfound knowledge to blackmail him into sharing his secrets. But as they navigate their complicated relationship, Claire's own hidden agenda is revealed: she's searching for her sister, who has also become a monster. Shuuichi agrees to help Claire track down her sister, but their quest is soon complicated by the presence of other forces seeking answers about the mysterious creatures.

As Shuuichi and Claire delve deeper into the world of monsters, they must confront their own secrets and the unknown threats lurking in the shadows. Will their uneasy alliance be enough to uncover the truth behind the transformations, or will their desperate search for answers put them in grave danger?