Earth Project's ' "슬픔이여 안녕/悲しみよこんにちは/Kanashimo Yo Konnichiha(메종일각 삽입곡)" was released on its scheduled release date, June 15, 2011. With This song being less than two minutes long, at 1:40, we are fairly confident that this song is not explicit and is safe for all ages. Based on the duration of this song, this song duration is much smaller than the average song duration.