* First appearance: Battle 157
* Age: 38
* Type: Dou
* Type: Satsujin Ken
* Martial Arts: Chinese Kenpo (Dì Tàng Quán)
Li Tenmon is a Yami master from China, though he is not a member of the One Shadow Nine Fists shown by the fact he was not in the meeting of the Nine Fists. He was contacted for his disciple to defeat Kenichi by Ogata Isshinsai.
Ma Kensei remarks that he is a deadly fighter who is just as bloodthirsty as his brother Sougetsu when Renka mentions Hermit was searching for his master. He has a daughter and disciple in Yomi. He often hit her if she did something wrong, such as calling him father instead of master.
After his daughter was defeated, Li Tenmon attempted to kill Kenichi himself and engaged Kenichi, Miu, Renka and the Shinpaku Alliance in a long, but noticeably mismatched battle. Just as he was on the verge of killing them all, Ma arrives and chides him for entering a match between disciples before defeating him. Ma also points out that though he may discipline his daughter ruthlessly, there are signs that he still cares about his daughter and other young girls, with Ma assuming it's because "they are someone's daughter".
It is noted by Niijima's Niijima Scan technique that Li Tenmon is at the level of the Ryozanpaku master's, though the accuracy of this may be off, due to the fact that his Niijima Scan exploded. Li Tenmon has also proved to be extremely durable, able to land on his head after jumping off of the roof of a two-story building without taking damage.