The «Soul Translator» (ソウル・トランスレーター, Sōru Toransurētā?, abbreviated as STL) is a 4th generation FullDive machine invented by Higa Takeru at Rath. Unlike its predecessors, the machine connects to a human's Fluctlight (i.e. consciousness or soul), instead of the brain. As of July 5, 2026, there are 5 STLs in existence: 1 is at Rath's main office in Roppongi and the other 4 are at the Ocean Turtle.