After digesting the disgusting medicine, Crow's temperature slowly returns to normal. Perhaps, the fact that a snow spirit is helping them in the medicine making it potent than the regular dose. The snow spirits bid her farewell since Min Soo is not interested in making any contract with her. Petrie is impressed that a human such as Min Soo can attract mystical beings around him.
Min Soo had his theories that perhaps his power is unconsciously amplified in his voice, thus attracting mystical beings like the spirit is a merely small fraction of his power. The Idol only chuckles and rubs his forehead in satisfaction, but he doesn't boast his ability since he dislikes his power.
It reminds him of the day when he's still in Seoul where everyone fawns over him due to his celebrity status, the affection he receives feels superficial at most. Hence, he had trust issues with his comrades and colleagues alike. Wearing a thick mask, he won't let anyone peek at his insecurity.
