Luger Code 1951 follows the story of Testa, a young genius professor. He is able to learn any language that he wants. His senpai, Sergeant Rossa of the Allied Forces, introduces him to a cryptanalysis location where his skills may be useful. There he is requested to learn a new form of code deciphering. The thing is, is that it is the language of humankind’s enemies, the werewolves. The Luger Code is what the werewolves use wirelessly to communicate in code amongst each other. Testa is daunted by the task, however he agrees to it, but there’s a problem! When he listens to it, it just sounds like a wolf’s howling! He feverishly attempts to understand it, but he is unable to. The next logical step in decoding the encryption is to capture a live werewolf. Being at what seems like the end of his rope, he finally stumbles across Yonaga, a female werewolf.