Dimension: Dilemma

On August 25, 2021, Belift Lab confirmed that Enhypen would make their comeback at the end of September.^[4] On September 2, the agency announced that members Heeseung, Jay, Jake, Sunghoon, and Jungwon tested positive for COVID-19.^[5] Member Ni-ki also tested positive three days later.^[6] On September 16, Belift Lab announced the members had recovered and that their first full-length album, Dimension: Dilemma, would be released on October 12,^[7][8] following the release of a concept trailer titled "Intro : Whiteout", uploaded on September 17.^[8]

On December 9, 2021, Belift confirmed that Enhypen would release a repackage of Dimension: Dilemma titled Dimension: Answer.^{[9][10][11][12]}

The first single "Tamed-Dashed" debuted at number one on the Japan Billboard Hot 100 chart with 386,142 copies sold on its first week, making it their first number one in the country and the hightest charting single of the album and it was certified two-times Platinum in RIAJ Japan.^[13] And it debuted at number 11 on the Billboard US World Digital Songs Sales. In Korea the song debuted at 110 on Circle songs chart. Second single "Blessed Cursed" debuted at number 184 on the Billboard Global Excl US chart, and number 32 on the Japan Hot 100. It debuted at 114 on the Circle songs chart in Korea.

The song "Polaroid Love" had success on the charts, it debuted at number 20 on the Billboard Philippines Songs. It had success in Asian countries reaching the top ten in Malaysia, Singapore and top 20 in Indonesia Billboard songs chart, and top forty in Vietnams Hot 100 chart. In the United States, it debuted at number 9 on the Billboard World Digital Songs Sales chart, and number 122 in Circle songs chart Korea.

On September 23, it was announced that the album pre-orders had surpassed 600,000 copies in six days.^[14] By October 7, pre-orders surpassed 910,000 copies.^[15] The album sold 501,748 copies on the first day following its release on the Hanteo charts^[16] and also topped the Oricon Daily Album Chart in Japan for two days in a row.^[17] On October 25, Dimension: Dilemma debuted at number 11 on Billboard 200 chart, surpassing their previous career high with Border: Carnival, which peaked at number 18.^[18] As of November 2021, Dimension: Dilemma has sold over 1.1 million copies on Gaon,^[19] becoming Enhypen’s first-ever million-selling album and receiving a million certification from the Korea Music Content Association (KMCA) in December.^[20]

On January 8, 2022, it was revealed that pre-orders for Dimension: Answer had surpassed 630,000 copies.^[21] The lead single, "Blessed-Cursed", became the group's first song to peak at number one on Gaon Download Chart. The album itself placed first on both the Gaon Album Chart and Oricon Albums Chart, making it Enhypen's third consecutive album to top the latter.^[22][23] Dimension: Answer also appeared in the top 20 of the Billboard 200 at number 13^[24] and became the group's third consecutive number-one on the Billboard World Albums chart.^[25]