Sikugyeong

One snowy winter evening, Chang-Deok spots a high schooler crouched in front of his favorite restaurant, blood running ice-cold in the falling snow. Lured in by the promise of meal made just like the restaurant's, Chang-Deok ends up inviting the boy—Jong-U—into his home; after all, Chang-Deok's life is as dry as day-old rice, and food is his only joy. So when Jong-U offers to cook him a delicious dinner every night in exchange for a place to stay, he reluctantly agrees. But as their unusual cohabitation begins, Changdeok can't shake this bloody feeling that Jong-U might be hiding something... Hopefully being a good Samaritan doesn’t come back around to bite him in the neck—er, butt... (Source: Lezhin, edited)