I think the servant didn't know where to bring Nakyum. NK usually would be in seungho room so he could sleep comfortably but seungho ignored nakyum and left just like that, so the servant brought him to a store room coz they can't enter seunghos room without permission. They didn't put any blanket but they light up the fire so NK could be warm. Since NK is also a lowborn, they didn't care much about him. Only matter when seungho start to treat him well. That's why you can see he got nothing there. Seungho probably came after they dump him there and put the robe on Nakyum shiver body... That's it. Just hoping seungho will change, if not...idk what to say anymore.
I think the fact Seungho covered Nakyum will his robe shows that he still loves him, despite his anger. He could have left him in the snow, but he brought him home. If he really wanted to punish Nakyum he could have left him with nothing in shed. But he gave him a fire for warmth. He already had bedding but he gave him his expensive robe for more warmth. I'm holding onto my hope that Seungho will let Nakyum explain what happened

Talk to me about the ROBE
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Ok, I need to address it and someone, please talk to me about this lol
We're all like "aww" that Nakyum was snuggling in Seungho's robe, finding comfort in it.
But WHY is this robe there in the first place ffs (ノ TДT)ノ
It's an expensive, tailored clothing. Seungho left Nakyum on the ground for the servants to bring him over when they found him. So he wasn't brought back wrapped in it.
He's not in a room, he's in a shed. He's laying on a straw mat and some white fabric. And yet, he's covered with Seungho's own robe. WHY.
Why not blanket. Or any other fabric. Why an expensive clothing.
Anyone?