Responses
He let go of his own body... he was put back when the chef was on the other body. On novel they also states that he's been like a dead person(?) He was moving... but the soul is kind of not doing good. So he just decided to let go of his own body since in the first place he knows that it's not really his place anymore...

I checked the novel since latest chapters stressed me out. Found out some things (will not spoil the story) I-se trust Yu-geon. Yu-geon like the Chef so much that it's making my heart hurt... Even reading the novel is stressing me out hahaha