Who knew teaching discussion classes will be this fun? TA Chaewon was sitting in on her seniors class when she noticed a cute student in the class. What will happen when she becomes the substitute teacher of that class for one day? ForewordTA Chaewon was sitting in on her seniors class when she noticed a cute student in the class. What will happen when she becomes the substitute teacher of that class for one day? --- My first oneshot. Hopefully it turns out well because my writing juices have not been back. Its just that this storyline is bothering me so much. Since Im back into my ssambbang comfort zone, Ill give this a shot. Hope you enjoy this!