<Hello> is the work of artist Nam Jeong, installed on the streetlight next to the signpost in front of the Royal Building. Considering the geographical characteristics of the intersection of the Royal Building with a large floating population, a lighting pole was installed to greet and talk to passers-by. The initial consonants of ‘Hello’ were used and arranged in layers. The letters embedded in the pillars were installed so that they could be reflected as shadows when the lights were turned on.