The cast of Flower Boy Next Door make another ratings promise! This time Yoon Shi Yoon and Kim Hoon promise to kiss each other if their new drama reaches 5% in ratings. Since the drama is already receiving impressive numbers, the boys gave us a teaser of what to expect, but held back for any further lip action for the real day. Pucker up, Yoon Shi Yoon and Kim Hoon, we are confident that your fans will make sure you meet the ratings! Are you watching Flower Boy Next Door? (Source: