Zerobaseone debuted on July 10, 2023, with the extended play (EP) Youth in the Shade and was commercially successful upon release, selling over two million units, peaked number one on South Korean Circle Album Chart, and was among the best-selling albums worldwide, according to International Federation of the Phonographic Industry (IFPI).

The show brought 98 contestants from around the world, primarily in South Korea, China, Hong Kong, Taiwan, Japan, Thailand, Vietnam, the United States, and Canada, to compete and to debut in a multinational boy group.

Kim Ji-woong was a member of the boy group INX[8] and an active actor who had appeared on multiple BL web series, such as Kissable Lips and Roommates of Poongduck 304.

[19] The group officially debuted on July 10, with their first EP Youth in the Shade along with its lead single "In Bloom" and music video.

[24] In conjunction with their debut promotion, the group held their first fan concert at Gocheok Sky Dome on August 15 to an audience of 18,000.

[25][26] Youth in the Shade subsequently sold more than 2 million copies, setting a sales record for a K-pop debut album.

[31] On November 29, WakeOne confirmed that Zerobaseone will be making their Japanese debut and hold a fan-meeting in Japan under Lapone Entertainment in March 2024.

[37] On March 31, Zerobaseone revealed a spoiler film "Summer Came Early" at the end of their special stage performance at the 2024 KCON in Hong Kong and announced that they will be releasing a new Korean album in May 2024.

[43] It was announced on September 27 that Zerobaseone would release the single "Only One Story", serving as the new opening theme for Rayquaza Rising, the fourth chapter of Pokémon Horizons: The Series.

on January 20, 2025, which serves as the first single off of the band's upcoming fifth Korean-language EP, Blue Paradise[46] scheduled to be released on February 24.

[51] In April 2024, coincidentally with their first formation anniversary, Zerobaseone collaborated with Line Friends to release nine new characters as the group's alter ego.