Background and release
A Flower Bookmark 2 consists of cover versions of nostalgic K-pop songs popularized from the 1960s to the 2000s, including "Autumn Morning" (Yang Hee-eun, 1991), "Last Night Story" (Sobangcha, 1988), "Sleepless Rainy Night" (Kim Gun-mo, 1990), "Secret Garden" (Lee Tzsche, 2003), "By the Stream" (Jeong Mi-jo, 1972) and "Everyday with You" (Deulgukhwa, 1980s). It was reported that IU personally approached the artists directly to ask for permission to remake their songs.
On September 18, 2017, "Autumn Morning" was released to coincide with the singer's ninth anniversary. The rest of the tracks were digitally released four days later, along with a music video of "Last Night Story" and a special performance clip of "Sleepless Rainy Night". The physical release of the album was scheduled to be September 25, but was postponed to October 12 because the remake album was originally going to include "With the Heart to Forget You" by the late singer Kim Kwang-seok. However, due to the recent revelations surrounding his daughter's death, FAVE decided to remove the track from IU's album. On January 6, 2018, IU unveiled a music video for the song, describing it as a tribute to the late singer Kim Kwang-seok. She shared, "As a loving fan of his music, I'd like to express my respect and memory to Kim Kwang-seok with this beautiful song sung with all my sincerity."
