Kill Me, Heal Me: Season 1, Episode 15

1 - 15: Living the rest of my life to atone for the sin won’t be enough; you’re the person covered with the wounds.

Rattled by the truth of the memories he shares with Ri-jin, Do-hyun is committed to living the rest of his life in repentance. Ri-ohn asks Do-hyun to step in so that Ri-jin doesn't recall her childhood memories.