The latter topped the Billboard K-pop Hot 100 for four consecutive weeks, making it IU's second number-one hit on the chart after "You and I".

This 26-minute-long short film is done in a documentary style and features interviews with IU as well as footage from her previously mentioned trip to Venice.

The lyrics and music video tell the tale of a girl who is deeply in love with a man that she hopes will make the first move.

[10][11] The final song on the album, "I Really Don't Like Her", is about a girl who resents a lost love for not giving her the attention she wanted.

[12] To prepare for her first solo concert, "Real Fantasy", IU did not perform any broadcast promotions for Spring of a Twenty Year Old.