Tento Seiin Ken

Tento Seiin Ken (天斗聖陰拳 Heaven Dipper Sacred Yin Fist) is a martial art appearing in Souten no Ken: Re:Genesis. It is the ancient martial art of the Nahash tribe. It has influences from the Seito Gekken style from when the Nahash met the Yuezhi millennia ago. It's shown to be a vampiric style that sucks away the tōki of its opponents. In the manga it is stated that the original Teito bloodline are called the Dragonians (創天龍人(ドラゴニアン)) and carry a gene called the Dragon God Factor (龍神因子) that allows them to emit light called ruach (רוּחַ).

The four pillars of the style are stealing (奪(うば)い取(と)る), accumulating (貯(た)め), rebinding (括(くく)り直(なお)す), and unbinding (解(ほど)く).

This style is used by Van der Kool in the manga, and Simeon Nagid, Himuka, and Shomer in the anime, although Van der Kool is not of the bloodline.

Techniques

㊕ = A "Shingi" (神技 Divine Technique).
Van der Kool's fist

• Tento Kogai Sho (天斗皇垓掌)
• Soen Mugen no Kamae (葬炎無幻の構え)
• Tento Kogo Baku (天斗煌翺擘)

Shomer's fist

• Darahan (陀羅漢) ㊕

Simeon Nagid's fist

• Tento Hakuja Shu (天斗白蛇襲 Heaven Dipper White Snake Strike) ㊕
• Tento Ryuhitsu Kaira (天斗竜櫃開螺, Heaven Dipper Dragon Coffer Opening Spiral) ㊕

Trivia

The traits of emitting light and burning the user's target, as well as the connection of the Nahash to the Tentei (through Erika), make Tento Seiin Ken thematically similar to Gento Koken.