Gleipnir

Shuichi Kagaya is just a regular high school student in a quiet, uneventful town. But when a fire traps his beautiful classmate in a warehouse, he unlocks an unexpected ability-he can turn into a furry dog with a massive revolver and a zipper running along his back. After rescuing her, he confides his secret. However, she has her own dark agenda: hunting down the sister who murdered her family. No matter how low she has to stoop, she’s determined to use Shuichi to achieve her goal…