Stygian SetNEGATIVE

Stygian SetNEGATIVE (In japanese : スティジアン・セットネガチブ Sutijian Settonegachibu), simply called Stygian, is a prototype combat mecha made by the deceased Professor Hacasse Sansae that seems to be based off an LFO, but in truth combines several different technologies from various series. Its pilot is Sekai Freiheit, who was chosen by the onboard AI called Charon APL in the setting of Super Robot Wars DRP.

Name
According to the project data, its name comes from the word Stygian, 'of the river Styx', and the 'Set of all NEGATIVE numbers'.

Coincidentally, it seems to follow a thematic naming convention with the river of the dead along with its combat AI Charon APL, and its pirate handlers, the Death River.

Description
The Stygian SetNEGATIVE is a black, humanoid mecha that relies on what seems to be a gigantic reflector board to fly. Its outer frame and functions seem to resemble a transformable LFO (Specifically the Nirvash Series) but deviates in several ways.

For example, the Stygian does not possess a Compac Drive, nor does it seem to require a Coralian hybrid as its pilot. Instead, it seems to rely on an Artificial Intelligence Interface connected from Sekai's phone.

Second, the Stygian can achieve 'lifting' even on planets without Trapar. The 'Trapar Waves' that ripple forth from the Stygian's 'Reflector Board' shine a bright red, like wet blood, rather than the green light produced by all other reflector boards. This implies that it uses different technologies from the commonly used LFO/KLF technology.

When first met by Eureka, she exclaims, "Whose child are you?"

Stats
These are the stats for the Stygian SetNEGATIVE according to Fate SRW.