The name of the group was described as "just like hyphens connect different words to make new meanings, the members will connect, discover each other, and grow together".
On September 18, 2020, the winners of the reality survival show I-LAND were announced as members of the upcoming boy group ENHYPEN. The group is composed of six members chosen by global viewers and one, Sunoo, chosen by the producer Bang Si Hyuk and directors Son Sung Deuk, DOOBU, Pdogg and Wonderkid.
They will officially debut sometime in November 2020.
On October 9, 2020, ENHYPEN announced their official fan club name as ENGENE which has two meanings: firstly, their fans are the "engines" that lets them grow and keep on going and secondly, the fans are the ENHYPEN's "gene" as they both share the same DNA to connect, discover, and grow together.
At midnight on October 22, their first debut trailer titled "Choose-Chosen" was released. This was followed by a second trailer, "Dusk-Dawn" on the 25th. On October 28, a pre-order notice was posted on ENHYPEN's Weverse, confirming the group would be releasing their first mini album, Border : Day One, on November 30.
- Border : Day One (2020)
- Soompi: Announcing The Top 7 Of "I-LAND": The New Group ENHYPEN
- (KR) TopStarNews: ‘아이랜드’ 데뷔조, 그룹명 엔하이픈(ENHYPEN)으로 결정…최종화서 걸그룹 버전 시즌2 암시
- ENHYPHEN on YouTube: Official Fan Club Name Unveiled! - ENHYPEN (엔하이픈) (ENG/JPN)
- Soompi: Watch: Upcoming Boy Group ENHYPEN Kicks Off Debut Teasers With “Choose-Chosen” Trailer
- Weverse: [Notice] ENHYPEN [BORDER : DAY ONE] 발매 안내 (+ENG/JPN)