The Legend of the Hungry Wolf, I Use Ninjutsu in the Werewolf Killing Space

I am a lonely hungry wolf. I use superb disguise and powerful ninjutsu to complete killings again and again. I am never cruel, the world is cruel. I just want to live forever. I am stronger than everyone else! In this world full of hypocrisy, no one can be trusted. Only the weapons in hand can make the cold heart boil a little. Prey, run for your lives! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.