One hot noon, there was a handsome boy sitting in the second class of the second grade of a certain school. He was holding a book on the underworld and was deeply immersed in the society of swords and swords in the book. He longed for the bloody battle, and he also wanted to be.
He is a powerful hero, but he only thought that after a severe crackdown, the underworld no longer existed. Little did he know that there was still a group of terrifying underworld forces under this city...
