Ah, Inbetween, the iconic mono yellow hallways,
the buzzing light, the disgusting carpet fluid, this is one one you likely most associate with this realm, with it being the star of the first image shared around this world after all,
i remember when i first entered this level, not knowing where i am, i thought i would die here, luckily, i found the way out, and i hope you will too once you enter this hellhole
Inbetween is the first level in the backrooms, the walls are covered in yellow wallpaper with what seems to be arrows pointing up segemnted by lines, the carpet, disgustingly wet, the liquid on it is unknown, but it sure isn't drinkable with desprate wanderers throwing up and getting dehydrated after drinking it, the ceiling is covered in lights, very loud buzzing lights, they drive the wanderers crazy, your sanity will drain if you listen to them for too long, and losing your sanity in the backroom is... Unideal to say the least. It's not all empty though, there is occasional furniture, and it's... weird, there's of course chairs, tables, couches, beds, stools, all those, but it's all... weird... most of it is modern or from the late 1900s, maybe some antiques here and there, but sometimes you'll find some furniture from what i assume goes all the way back to ANCIENT MESOPOTAMIA. Strange considering how modern this place is, it's more proof that the theory is in fact true, the connections between this level and reality is much much closer than most of the other levels, theoritically allowing a more stable portal between reality and the backrooms, so far nobody has attempted to open one