The album debuted at number one on the weekly Gaon Album Chart and at number three on the monthly chart for December, selling 268,396 copies in its first month of release. It has since been certified double platinum by the Korea Music Content Association (KMCA) for surpassing 500,000 units.
On December 1, the group released their debut single album, Eleven, led by the single of the same name. The song is an energetic and rhythmical dance pop filled with diverse accompanying variations that expresses the love of a girl, having their hearts filled with fantasy and colours.[1] The group made their broadcast debut on KBS2's Music Bank on December 3 to perform "Eleven".[2]
The single debuted at number three on the South Korean Gaon Album Chart for the week ending December 4, 2021.[3] The album dropped to number four the following week and stayed at the position for two consecutive weeks. The following week the album jumped three spots to number one becoming the group's first chart topping album in their home country.[4] The album sold 268,396 copies in December debuting at number 3 on the monthly albums chart.[5] With less than a month of tracking the album became the 49th best selling album in the country and the tenth best selling album by a female artist or group in the country in 2021.[6]
In a mixed review from IZM, writer Jung Soo-min wrote that the "oriental sound" and "repeated percussion" empathized the unique voices of all the members. Jung also added that there was one killing point in particular that stood out in the pre-chorus when the song slows down, commenting that the vocals were captivating and drew the listener in to focus. Although Jung praised Ive for trying to differentiate themselves from other competitors, they pointed out that there was a lack of strong individuality from the group's concept in comparison to other new girl groups. However, Jung noted that developing a group's identity takes time, and praised the single album, saying that overall "[this] is a debut single that exceeds expectations".[8]
^Gong, Mi-na (December 3, 2021). "'뮤직뱅크' SF9, 출연 없이 1위..장원영, 아이브로 데뷔[★밤TView]" ['Music Bank' SF9, 1st place without appearance... Jang Won-young, Ibro debut [★Night TView]] (in Korean). MT Star News. Archived from the original on December 6, 2021. Retrieved December 6, 2021 – via Naver.
^"2021년 52주차 Album Chart". Gaon Music Chart (in Korean). Archived from the original on December 29, 2021. Retrieved December 30, 2021.
^2021년 12월 Album Chart [December 2021 Album Chart]. Gaon Music Chart (in Korean). Archived from the original on January 6, 2022. Retrieved January 6, 2022.
^"2021년 Album Chart". Gaon Music Chart (in Korean). Archived from the original on January 7, 2022. Retrieved January 7, 2022.
^Jung Soo-min. "Eleven". IZM (in Korean). Archived from the original on December 17, 2021. Retrieved April 17, 2022.
^"2021년 52주차 Album Chart". Gaon Music Chart (in Korean). Archived from the original on December 29, 2021. Retrieved December 30, 2021.
^2021년 12월 Album Chart [December 2021 Album Chart]. Gaon Music Chart (in Korean). Archived from the original on January 6, 2022. Retrieved January 6, 2022.
^年間 シングルランキング 2022年度 [Annual Single Ranking 2022] (in Japanese). Oricon. Archived from the original on December 22, 2022. Retrieved December 22, 2022.
^"2021년 Album Chart". Gaon Music Chart (in Korean). Archived from the original on January 7, 2022. Retrieved January 7, 2022.
2021년 12월 Album Chart [December 2021 Album Chart]. Gaon Music Chart (in Korean). Archived from the original on January 6, 2022. Retrieved January 6, 2022.