Sun Kyul is resolute about curing his mysophobia, but Oh Sol reaches a drastic verdict after her family discovers his grandfather's identity.

Devastated by his grandfather's revelation about AG Group, Sun Kyul discovers he's been betrayed by someone he implicitly trusted.

Oh Sol hears that Sun Kyul is leaving for the U.S. Oh Sol's family receives an overdue apology. Sun Kyul wants to start over, but it may be too late.