The SEGA system is a system of xenogenders, all of them connected to or somehow relating to SEGA gaming consoles. Because of that, they fall under the technogender umbrella.
The SEGA system was coined by FANDOM user Izumizumiku, on November 23rd, 2021, via an LGBTA Wiki discussions post.
The flag was made by FANDOM user Izumizumiku, using the same flag as the previously existing SEGAgender. It was inspired by the SEGA logo, blue with thin white stripes in-between.