Yoojoo has a specific taste when it comes to men: they must have broad, beautiful chests. She’s never met her ideal chest before, until she finds it on Dojin, her next door neighbor since childhood. After a drunken night where Yoojoo gets to have a taste of Dojin’s deliciously perfect pecs, she earns his forgiveness by being his errand girl and promising to let him do the same to her if she ever lays hands on his chest again. But there’s no way it will happen again, obviously. Or so she thought…