This anime is not so popular but I decided it to give it a try nevertheless. This anime is really good. I didn't exactly like the animation but it wasn't so bad either. "An eye for an eye, a tooth for a tooth, and evil for evil", These heroes are the guardians of Japan, but people are not aware of their existence, so they merely protect people from the dark. The mc is a girl who happens to meet one of these heroes known as code breakers by chance. The story soon develops into an interesting and unconventional plot. But to say the truth, to me, the ending seemed kindof incomplete but still a welcome one.