It's a JRPG video game series. It parodies the video game industry. The world in which the games take place is called Gamindustri. There are four countries called Planeptune (Sega), Lastation (Sony), Lowee (Nintendo), and Leanbox (Microsoft). Each country is ruled over by a goddess. Neptune, who Ruby is dressing as, Noire, Blanc, and Vert.



The joke here is that Neptune doesn't understand the concept of a fourth wall, and constantly speaks to the player, or even the developer about what's going inside the game. Either adding her own witty coment, complaing about some annoying mechanic, or even calling enemies "random encounter trash."



The entire series is on Steam if you want to check it out.