#mine interpretation

He out of worry towards Hinata is asking him how much fat he has. When Hinata honestly says he does not know he is surprised about it:

Like he must have learned it and this knowledge is very important to him.

He was afraid that Hinata would normaly froze to death becausee he’s so skinny.

As we know Twogami has no name, no family and nobody knows them.

these are amazing

intendone

balgeoreum + intendone

hellokpop

jyjsoul

lylisia

and then there's me adding my 2 cents

x

but if this is true then there are many smaller candles also which would symbolize Jaejoong's other friends who support him

but then overall, even if you don't see them at 1st there are 2 other cauldrons lit in the front.  these could symbolize Yunho and Changmin if we are going by this interpretation.