Seo Hyunsoo's relationship--if you can call it that--with his coworker Baek Youngchan is getting too complicated. Hyunsoo knows his personality is difficult to deal with, which is why he's always had a hard time making friends. So how can the ever-positive Youngchan put up with him, both in the office and in bed? However, his decision to end things doesn't go over well with Youngchan, bringing new tension to the office that everyone can sense. And to top it all off, Hyunsoo's mom ends up in the hospital. If ever Hyunsoo needed a boyfriend to lean on, now would be the time. But is Youngchan up for the challenge?