[2] Fans are able to participate and communicate with the group, such as deciding the sub-units and the content through NFT photo cards called "Objekts".

The group name "TripleS" means "The Idol of all Possibilities" and the three S letters which stand for "Social, Sonyo, Seoul".

Jeong Hye-rin was a child actress under Kids Planet, making her acting debut in the 2018 web-series Between Us; she also appeared in a commercial for Japanese textbooks.

[citation needed] Kim Na-kyoung is the younger sister of singer Bibi and appeared in the final episode of SBS competition show The Fan.

Gong Yu-bin was a contestant on the TV Chosun junior cooking show I am Chef, making it to the Top 3.

[citation needed] Kim Chae-won was a contestant on SBS survival show Universe Ticket,[11] and was eliminated in the first round, ranking 70th.

[24] Acid Angel from Asia made their official debut on October 28, 2022, with the EP Access.

[25] The debut made both commercial and critical success; "Generation" was nominated on SBS M's The Show,[26] and Access reached No.

[33] On February 13, all of the members, excluding Kotone and Kwak Yeon-ji, released their debut EP Assemble, with the title track "Rising".

[44][45] Between June and August 2023, members Yoon Seo-yeon and Lee Ji-woo took part in the Mnet reality competition show Queendom Puzzle.

[49][50] On July 28, TripleS announced that they would hold their first world tour, with its first leg to proceed with their upcoming fourth sub-unit Lovelution, titled "TripleS 1st World Tour 'Authentic' Lovelution in US" starting on September 24 in Atlanta and ending on October 14 in Los Angeles.

[51][52] On August 17, the group's fourth sub-unit Lovelution officially debuted with the EP Muhan and its accompanying title track, "Girls' Capitalism".

[53] On October 11, the group's fifth sub-unit Evolution officially debuted with the EP Mujuk and its title track, "Invincible".

The sub-unit, which would focus on ballad music, was formed through fan voting wherein four members were selected to join the group's main vocalist, Seo Da-hyun.

[58] Starting from December 21, the members were introduced: Lynn,[59] Joobin,[60] Jeong Ha-yeon,[61] and Park Shi-on.

[75] On October 23, TripleS' ninth sub-unit Visionary Vision debuted with their first album Performante, which contains ten tracks including the lead single "Hit The Floor".

[77] TripleS will be releasing their second studio album as a full group, Assemble25, in the first half of 2025, led by the title track "Stranger Things".

[78] On July 12, 2022, TripleS partnered with the convenience store GS25 to sell the group's exclusive photocards and collaboration set products.