What's the story behind IU's kindergarten in "Dream High"?

For the series finale of "Dream High", viewers got to fast forward a few years, and saw that the 'Milky couple' were still together. IU's character, 'Pilsook', became a director for the "IU Kindergarten", a quip that amused many fans. Why was it called the "IU Kindergarten"? At first glance, you'd assume it was named for the actress who played the beloved character, and really, you wouldn't be far off. But there's an extensive reasoning behind the name. In Korea, a kindergarten is called 'yoo-chee-won', and the Korean term for a child is 'Ai' or 'I'. Thus, when viewers noticed that the kindergarten's name was 'I-U-chee-won', they chuckled over the clever wordplay. People were interested in the kindergarten, so they searched for it and discovered that it was a real school in Kyung-Ki-do. Due to the immense amount of interest over the school, their website actually crashed from the influx of traffic. Netizens wrote, "This is so cool. I had no idea it was real", "I bet the real director of the kindergarten is happy", and "IU's popularity has reached kindergarteners." Source: MK