Head investigator Mitsukazu Hisago, investigator Mori Shimeki, his female Pomeranian Kobayashi-kun, and secretary Nagi Tsukumo have recently opened their detective agency. The title comes from the fact that the investigators' last names in Chinese characters are 135 and 753, which add up to 888 - three eights.

As a child, Hero's family was attacked and killed by a practitioner of Northern Mantis kung fu. This assassin was tasked by the affluent head of a local triad to retrieve Hero's family heirloom: the legendary Blood Sword. Barely escaping with his life, Hero has now reached adulthood. He's mastered several forms of kung fu to aid him in his one lifelong endeavor: to safeguard the family treasure. But now his enemies turn their gaze to his newborn son.

As a child, Hero's family was attacked and killed by a practitioner of Northern Mantis kung fu. This assassin was tasked by the affluent head of a local triad to retrieve Hero's family heirloom: the legendary Blood Sword. Barely escaping with his life, Hero has now reached adulthood. He's mastered several forms of kung fu to aid him in his one lifelong endeavor: to safeguard the family treasure. But now his enemies turn their gaze to his newborn son.

It's been years since Hero lost his son and servant Sheng Nu to the abyss near the No Shadow School. Unbeknownst to Hero, they have survived, but not without much trepidation and repeated peril. The seemingly villainous Hell's Gate will stop at nothing to grant the dying wish of their deceased leader: to make Hero's young son the new clan leader of the infamous Hell's Gate!

It's been years since Hero lost his son and servant Sheng Nu to the abyss near the No Shadow School. Unbeknownst to Hero, they have survived, but not without much trepidation and repeated peril. The seemingly villainous Hell's Gate will stop at nothing to grant the dying wish of their deceased leader: to make Hero's young son the new clan leader of the infamous Hell's Gate!

Fifteen years have passed since Hero made a vow to Sword Saint to relinquish the path of vengeance. Unbeknownst to him, his son Jian is still alive and has come to Chinatown to find him! But why does Jian take his sweet time telling his father his true identity?

Fifteen years have passed since Hero made a vow to Sword Saint to relinquish the path of vengeance. Unbeknownst to him, his son Jian is still alive and has come to Chinatown to find him! But why does Jian take his sweet time telling his father his true identity?

As a child, Hero's family was attacked and killed by a practitioner of Northern Mantis kung fu. This assassin was entrusted, by the affluent head of a local triad, to retrieve Hero's family heirloom: the legendary Blood Sword. Includes a Chinese Hero poster and cards in an ornately embroidered case.

As a child, Hero's family was attacked and killed by a practitioner of Northern Mantis kung fu. This assassin was entrusted, by the affluent head of a local triad, to retrieve Hero's family heirloom: the legendary Blood Sword.

Hero rescues the missing people in Steel Bull Valley by defeating Steel Bull, the ruler of the valley. Before dying, Steel Bull lets out a cry calling a riot of the bulls in the valley that kills Lohan. While Hero is trying to get back to China Tower, he meets a prophet and finds out that he is going to be lonely for the rest of his whole life.

After heeding the Heavenly Umbrella Elder's advice, Jian finds the Heavenly Umbrella to uncover the secrets hidden within it and learns several new mysterious techniques. However, Jian's arrogance leads to the death of someone close to him...

Poison Master has opened the third order; it tells him to make a deadly poison to kill both Hero and Jian. While he was practicing poison in the forest, he encounters Jian. He uses his poison to capture Jian. What will happen to Jian?