Never fear, I Miss You fans—answers to your questions about this heart-breaking drama are on their way in the upcoming episode, to be aired on December 12. Meanwhile, here's what we know in advance. The cleaner's suspiciously absent daughter Bo Ra will appear in a voice-over done by child actress Kim Sae Ron. Bo Ra will reveal why the mysterious cleaner, who zapped Jung Woo with a stun gun, had to kill Kim Sang Deuk. Previously, writer Moon Hee Jung had worked with Kim Sae Ron on Can You Hear My Heart, and brought her in to make a cameo in this devastating drama. Are you on the edge of your seat for this episode? (Source: