Kangai doesn't have a room. He sleeps on the couch and all his possessions are contained in a single duffel bag.

If he had a room in a game, he would have a desk and pin up notes and observations about the setting so he can analyze them

otherwise, he still wouldn't have many decorations or possessions.

Kanonno also doesn't have a regular room, she's usually in an inn or has an agreement to live in someone's extra room

so she doesn't decorate much, and her stuff also fits in one trunk

Gamewise, she'd try to stay in that same routine, but I think after a while, she'd realize that she can decorate her room, and it is in fact, her room.

But she'd never buy a bunch of things to decorate with.

Instead, it would slowly get decorated with knick knacks she gets from people or finds when out and about

like maybe the lady at the flower shop recommended her something that looks like her headband

or maybe she was shopping with someone and they pointed out that she was staring at a stuffed animal

everything in her room would have a memory attached to it.

She doesn't buy anything superfluous when on her own. I don't know how long she was with Ad Libitum, but she saved up enough to buy a house without even meaning to

and when asked if she could buy anything in the world, she said yogurt and a roasted apple

she answered with food such a precious girl

I want her to own a giant stuffed animal in Saeng Seong because secretly she does get lonely when no one's looking, but she'd never buy one on her own unless it reminded her of Mormo but even then idk