'Warm and Cozy' must be in the heartbreaking, unrequited love stage as a new MV for OST "Without You," sung by Sunny Hill's Joobi, shows a crying Kang So Ra who seems unable to get over Yoo Yun Suk.

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There are hints in the MV, though, that Yoo Yun Suk also feels attached to Kang So Ra. The song itself is light and sweet with Joobi's soaring vocals carrying the delicate emotions portrayed in the drama.