You may recall that Amy ate a candy bar that turned her into a Gatomon X a while back. Since she had a second tail, Katya had to cut a hole in some of her diapers for it to accommodate. However, one day, Amy went to the kitchen to get her bottle. She felt strange as she reached for it and felt a cold breeze at her rear. The marking on her head vanished and her second tail disappeared, leaving an open hole in her diaper for everyone to stare at. Poor Amy kept her rear against the wall as she went to find Katya.