Tenma Tsukasa

Tsukasa was just a normal guy. He went to school, hung out with his friends, and did other things boys his age did. However, he had a secret: he was actually a beastman.
A wolf, to be specific. Every full moon, he would transform into his beast form, growing sharp fangs and claws as well as a huge build. Being a teenager didn't help, as his beastman instincts often went loose, resulting in him being restrained until the morning came.
It was always tiring during that time...