Tokyo Underworld, Vol. 1

In the urban legend city of Tokyo Underworld, those who drive others to death fall and are executed by guardians. Twin high school students, Yomi and Yami, on their way back from an extracurricular lesson, fall into this city along with their classmates after their homeroom teacher's suicide. One by one, their classmates lose their lives to the brutal guardians... The escape from hell begins!