Taichimora Entertainment Technologies (TET) is a small niche company that produces popular entertainment devices. It was formed in YE 28 and introduced two products that very year. The factory and offices are located in in the subterranean portions of the Uesureyan Fields, Yamatai (Planet).
In YE 33 TET was purchased by the Tamahagane Clan, and became part of the Tamahagane Corporation.