Gleipnir - S01

Shuuichi Kagaya seems like an ordinary high school student, but he has one unusual problem-sometimes he turns into a monster. He doesn’t understand how or why it happens, and he’d rather keep it a secret. One night, he spots a burning building with a girl trapped inside. He transforms to rescue her, but in the chaos, he leaves his phone behind. The next day, the girl he saved, Claire Aoki, tracks him down and accuses him of being the monster. When Shuuichi denies it, she shoves him off the school roof to force the truth out of him. To survive, he transforms again, and Claire takes a photo as blackmail, demanding he explain his abilities. The problem is, Shuuichi knows almost nothing about them. Claire has her own hidden motive-she’s been searching for her missing sister, who also turned into a monster. She drags Shuuichi into the hunt, but they soon realize they aren’t the only ones looking for answers.