Hi soviet

[ClassyFerret]

What is Ten-chi?  Is it a martial art?

[Dr.Soviet]

sorta...

[Auir]

Ten chi...

Well. *puts on professor glasses*
'Ten chi' in Japanese means Heaven and Earth.
It's derived from Chinese 'Tian Di', also meaning Heaven and Earth. Literally they both mean 'Sky and Ground/Earth'.

Tenchi is also a common name for swords back in ancient Japan.

Tenchi is also the name of the main character from the anime, Tenchi Muyo (No need for Tenchi/Useless Tenchi).

Also phonetically, it sounds like 'weather' in Chinese. 'Tian Chi' - 'Ten Chi'

[جبريل 無道]

Welcome to the board.

Tenchi here is a 90s harem anime, one of the earliest and most defining of the genre, with very strongly defined women -  and their fans makes the backbone of the fandom.