One day, Loopy measures Pororo’s neck size and tells him not to ask why. Pororo gets curious and peeks into Loopy’s house and finds out that she is making a muffler. Pororo heads home with a smile, thinking that Loopy is making the muffler for him. Next morning, Pororo heads to Loopy’s house with some flowers, but finds Eddy and Poby waiting in front of her house.