BL!SS (블리스/ブリス) is a 24 member girl group under IST Entertainment that made their debut as a 24 member group on February 14th 2024 with the studio album 'We Are BL!SS' which had the double title track 'Girls Never Die' and 'Into The New World' in which the latter is a remake of SNSD's debut song. The group also had a 10 member release with the Studio Album 'BL!SSful' which had the title track 'Rising'

The members (in reveal order) are Julia, Inhye, Maia, Youra, Nayeon, Haeyoon, Minyu, Gowon, Haruka, Minseo, Nire, Yuri, Charlie, Jian, Reina, Yuna, Alexis, Seyoung, Hani, Shari, Adeline, Yerin, Aeri and Chia.

The group is split into a variety of subunits which promote throughout the year. The group will have yearly comebacks as 24 but to try and reduce overworking and underworking, IST decided its best for subunits and it allows for each member to shine.

ARCAN3 (아케인) is the first subunit of BL!SS that debuted on October 1st 2022 with the Single Album 'New XX' which had the title track 'Generation'. The members in this subunit are Minyu, Hayoon, Inhye and Maia. The subunit was originally just going to release their debut album and a single but the fans protested so ARCAN3 had a comeback in 2024.

Carnelian (카넬리안) is the second subunit of BL!SS which debuted on March 15th 2023 with the Single Album 'Sweetness On Top' which had the title track 'Cherry Talk'. The members in this subunit are Julie, Gowon, Nayeon and Youra. They later released 2 Digital Singles, 'OTT' and 'Fine' in which the latter is a remake of SNSDs Taeyeon's solo song 'Fine'.

V0YAGE (보이아지) is the third subunit of BL!SS that debuted on June 10th 2023 with the Mini Album 'Sounds Of Us' which had the title track 'Invincible'. The members in this subunit are Reina, Minyu, Julie, Nire, Nayeon, Youra, Jian and Maia.

Dynamo (다이나모) is the fourth subunit of BL!SS that debuted on September 6th 2023 with the Mini Album 'P0PSTARZ' which had the title track 'MVSK'. The members in this unit are Yuri, Minseo, Gowon, Hayoon, Haruka, Charlie and Inhye.

SIIRENS (시렌스) are the fifth subunit of BL!SS that debuted on December 1st 2023 with the Mini Album 'W1SH' which had the double title track 'Just Do It' and 'SOS'. The members of this subunit are Alexis, Yuna, Seyoung, Hani and Shari.

M00NI3 (문이) is the sixth subunit of BL!SS that debuted on April 18th 2024 with the Mini Album 'Our Flow' which had the title track 'Inner Dance'. The members of this unit are Adeline, Chia, Aeri and Yerin.

Rebelle (레벨) is the seventh subunit of BL!SS that debuted on June 28th 2024 with the Studio Album 'Our World' which had the title track 'Hit The Floor'. The members for this unit are Reina, Minyu, Alexis, Nire, Hayoon, Haruka, Yuna, Hani, Inhye, Jian, Shari and Chia.

OR1ON (オリオン) is the eight subunit of BL1SS which debuted on September 18th 2024 in Japan with the Mini Album 'I Am Me' which had quadruple lead tracks which were 'Wing Wing', 'Sweet Nonfiction', 'UFO' [Unit] and 'Crush' [Unit]. The members of this unit currently are Yuri, Julie, Nire, Gowon, Nayeon, Youra, Charlie, Aeri and Yerin. The unit lineup changes every year and a member that was in the unit before cannot be a member for the next promotional year until the best line up change.