What's Wrong with Secretary Kim

I Don't Want to Waste Away Tonight (1x12)

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Young Joon can’t help himself but worries about Mi So because now she remembers what really happened when she was kidnapped. What if she starts to have nightmares from now on just like he has? Young Joon wants to take care of his lover even when she falls asleep, so he persuades her to let him move into her studio for a while. Meanwhile, Sung Yeon finds out that it was not him but his brother who was kidnapped and the reason why Young Joon had pretended to lose his memories.