One of Yurika's most peculiar yet intriguing creations was a line of nipple bottles designed with an unusual aesthetic she dubbed "lewd katu127." These bottles were not just any bottles; they were designed to mimic the look of certain anime or manga characters' expressions, known for their playful and cheeky demeanor. The "lewd katu127" part of the name was more of a playful code, known among fans of a certain genre of art and humor.