On April 16, 2012, Loen announced IU would tour concert halls in six cities in South Korea: Seoul, Ulsan, Jeonju, Suwon, Busan and Daegu.

IU performed "Peach", "Rain Drop", "Nagging", "The Night of the First Breakup", "Mia", "Every End of the Day", "Love Attack", "Marshmallow", "Uncle".

[8] Several singers made guest appearances during the tour, including Lee Juck, Lee Seung-gi, 2AM, Sung Si-kyung, K.Will, Kim Tae-woo, Leessang, Sunny Hill, Jia, Ra.D, Haha, Norazo, Sweet Sorrow, Baechigi, Mighty Mouth, Huh Gak and Second Moon.

Others celebrities that made an appearance include Noh Hong-cheol, Park Ji-sung, Yoo In-na and Ji Hyun-woo.

[10] The first show in Seoul was well received and IU's ability to confidently lead a three-hour concert by herself was praised alongside her vocals and dancing skills.

She was joined on stage by Choi Baek-ho [ko] for their collaborative song "Walk with Me, Girl" and together they covered his 1995 single "About Romance".

On October 19, 2015, four days before the release of IU's fourth extended play, Chat-Shire, it was announced that the singer would hold her third concert tour Chat-Shire in support of the EP, and would not perform on music shows to focus on live performances and her health, which had been deteriorating due to hectic schedules.

[22] On December 31, Loen announced on Facebook that a limited edition photo book would be sold alongside ticket reservations.

[29] IU appeared on the stage as a "fairy tale protagonist" wearing a white dress and opened the show with "Shoes".

[28] The concert marked IU's first performance of "Twenty-Three", during which she wore a black crop top and hot pants.

[28][29] She also sang "My Old Story" and "Meaning of You" from her remake album A Flower Bookmark (2014), as well as a medley of the theme songs of Sailor Moon (1992–1997), Cardcaptor Sakura (1998–2000) and Yumeiro Patissiere (2009–2010).

IU came back on stage for the encore and performed "Heart", "Glasses" and her unreleased song "Drama", which would later be featured on her 2021 EP Pieces.

[31] During the first concert in Seoul, Dynamic Duo joined IU on the stage for "Leon" and performed their songs "Jam" and "Friday Night".

[29] Several celebrities made guest appearances during the two-day concert in Seoul, including IU's boyfriend at the time Chang Kiha, Kwon Jung-yeol of 10cm, Yoo In-na, Ji Hyun-woo, Han Seung-yeon, Goo Hara, Lim Seul-ong, Baek A-yeon, Hyukoh, Epik High and GFriend.

[35] Critics commended IU for her decision, which was perceived as a bold move from the singer that showed "the affection and sincerity she had for this song".

[36][28][29][30] Choi Hyun-jung wrote, "IU is a singer with a much stronger mentality than we thought, and at her concert that day, she overcame her burden with her sometimes strong and witty appearance".