In which Mingyu gets tutored by Wonwoo and both agreed that if the the taller passes the exam, Wonwoo will give him any reward.

A meanie soulmate au where a person gets a tattoo of the soulmate's description on their wrist will appear on their 18th birthday. Mingyu got '연구' (study) and Wonwoo got '개' (dog), what can this oneshot give you else? a bad plot that I thought of while doing Algebra. Notes: this au is in 2015 (Mingyu is 18 while Wonwoo is 19)