Chapter 1 reuploaded with 3 extra pages found on the author's twitter page.
One page 3, the kanji is "Red Hare" the horse ridden by Lü Bu in the Romance of Three Kingdoms. I have no idea what that means in that context though... I don't even know what that is? a fridge? It's making noise and the sign says 50 dB until 7PM.
edit: Ah, in that context, I'm pretty sure that's a washing machine or dryer.