Oh Sehun is a Korean-British guy who grew up in a broken family with abusive father which left him traumatised. He holds grudge against his father's ex-girlfriend, which happens to be Hayoung's mother. Sehun put all the blames on Hayoung's mother and swears to seek revenge on her family But everything changes when Sehun starts to fall in love with Hayoung. He promises to protect instead of hurting her PEAK #1 Apink, Exopink, OhMaknae & OhCouple #2 Seyoung & Hayoung