A gripping story of friendship, betrayal, family drama, unsolved feelings and secrets buried deep within the past. Kang Haerin grew up in the lap of luxury, the daughter of a prominent family known for their wealth and influence. But when her mother died unexpectedly, Haerin is thrust into a whirlwind of inheritance battles, legal drama, and cryptic family secrets. While reminiscing her past filled with fond and haunting memories she desperately tries to uncover the dark secrets lying within her Family. Meanwhile, Danielle Marsh( Mo Jihye), her childhood best friend and perhaps something more, has never forgotten Haerin. While their bond was once unbreakable, life took them down different paths. When their paths cross again under tense circumstances, Danielle is pulled back into Haerin's orbit. But as they reconnect, She realizes she has her own questions about their shared past. Danielle is determined to uncover the buried truth about what happened between them long ago, a truth that could either rekindle their old bond or destroy it for good. Who is Hanni Pham though?