2017–2019: Formation and pre-debut activities Following the establishment of
YG Entertainment's representative boy bands
Big Bang (2006),
Winner (2014), and
iKon (2015), speculations regarding their next group circulated in 2017. Early reports identified
K-pop Star 2 (2012–2013) runner-up,
Bang Ye-dam, as a core
trainee, with reports citing the prospective line-up as the label's youngest male act, comprising trainees aged 15–17 with an average of four to five years of
training. The band's formation was determined through the
reality program YG Treasure Box (2018–2019), featuring twenty-nine trainees. The final seven: Haruto, Bang Ye‑dam, So Jung‑hwan, Junkyu, Park Jeong‑woo, Yoon Jae‑hyuk, and
Choi Hyun-suk, were introduced as Treasure. A second unit, Magnum, consisting of Ha Yoon‑bin, Mashiho, Doyoung, Yoshi,
Jihoon, and Asahi, was later disclosed. Both teams were to promote collectively as Treasure 13. Following Ha's departure, they were reorganized, and the two units were consolidated under the single name Treasure. Several members had prior stints in entertainment; Junkyu worked as a
child model, Bang Ye-dam recording for animated programs, and So Jung-hwan briefly starred as a child actor and performed with the Taekwondo demonstration team K-Tigers. Mashiho
featured in
Akdong Musician's
Spring of Winter (2016), while
Choi Hyun-suk and Junkyu competed in
Mix Nine (2017–2018). Bang was the earliest recruit among the final lineup, joining YG Entertainment in June 2013. Mashiho entered later that year through a Japanese audition. Junkyu, Choi, Doyoung, and Jihoon joined through academy‑facilitated private auditions between 2014 and 2016. So was cast shortly before the broadcast of
YG Treasure Box. first revealed on
YG Treasure Box (2018–2019) and co-written by
Mino of Winner. Their re-introduction also included
variety programs such as
Treasure Map. Modeled using Big Bang's debut as a blueprint, plans were set to release new music 3–4 times throughout the year, similar to how the quintet debuted with single albums in 2006. Prior to their official debut, Treasure became the fastest Korean act to chart on the
Billboard Social 50, remaining on the chart for six consecutive weeks, and peaking at number 3 on August 29. Additionally, the group amassed an estimated 1.49 million subscribers on their
YouTube channel ahead of their debut. and received
platinum certification from the
Korea Music Content Association (KMCA). The music video for its
lead single "
Boy" surpassed 10 million views within 26 hours and 20 million views within six days, later becoming their first to reach 100 million views on
YouTube. The
second installment, released on September 18, entered the Gaon Album Chart at number two. Its titular single "
I Love You" (사랑해;
saranghae), topped
Rakuten Music's monthly chart for September despite less than two weeks of tracking. The
third installment followed on November 6 with the lead single "
Mmm" and the
B-side "Orange" (오렌지;
olenji), the group's first self-produced work, written by Asahi. The series concluded with their
first studio album, released on January 11, 2021. It marked their third number one on the Circle Album Chart and debuted atop for the month of January. The series ended with over 710,000 copies sold in three months and one million in five months, earning the band multiple awards, including their first at the
Asia Artist Awards. Treasure lent their voices to the soundtrack of the
TV Tokyo Japanese anime,
Black Clover. First revealed on January 5, 2021, in the anime itself, the song also served as the band's first original Japanese release. It was digitally released as two versions on January 22 and February 14, respectively; where the full version of "
Beautiful" entered the
Billboard Japan Hot 100 chart at number 58, and the
Billboard World Digital Song Sales chart at twenty-third. In commemoration of
Black Clover's final episode, the full version was aired at the request of its director. Their Japanese debut album,
sharing a title with their first full-length album, was released on March 31. and debuted atop the weekly chart with over 57,000 sales in its first week. The band first appeared on terrestrial broadcast in Japan with the
Nippon TV music program
Buzz Rhythm, where they performed the Japanese version of "Boy", in conjunction to their official debut in the country. in
Seoul on April 10, 2022 YG Entertainment publicized a prelude for "The Second Step" on
New Year's Day, heralding
The Second Step: Chapter One, their first
extended play (EP), and its release on February 15, 2022. 600,000 records were pre-ordered in eight days It was also listed in the twenty-five best K-pop albums of 2022 by
Billboard staff. Its titular single, "
Jikjin" (직진), obtained
₩500,000,000 (
$420,000) for its music video, amassing 10 million views in 21 hours, and 20 million in under three days, also career highs rising five times faster. and earliest entry on
Circle Digital Chart. Its
B-side, "Darari" (), found success on
TikTok, reaching 500 million views with over one million uploads, and was one of the most
shazamed and streamed K-pop songs of 2022 on
Apple Music and
Spotify. Released on October 4, titular single, "Hello", from their
sophomore EP was listed as one of five best K-pop songs of 2022 by
Time while its Japanese equivalent became their first album to be
certified gold by the
Recording Industry Association of Japan (RIAJ). Bang Ye-dam and Mashiho, who went on hiatus in May to pursue studies in music and recuperate in health, respectively, were absent; both departed in November. They embarked on their first arena tour in Japan that month—the largest debut tour held in the country by a Korean act, exceeding 300,000 attendees—later extended to an Asia tour dubbed "Hello", in correlation to its latest release, concluding with 420,000 people.
2023–present: Reboot project and career expansion {{Multiple image The ten-piece reunited with the
Black Clover franchise for its
theatrical soundtrack, with "Here I Stand". It became their first number one hit on the
Billboard Japan Hot 100, and first platinum certification awarded by the RIAJ ensued from its integration into their Japanese single album of the same title. Its certification was attained five days following its release on March 29, 2023, generating
¥464.4 million (
$3.51 million) in five days. The band toured for two months across five cities of Japan for a nationwide fan meeting until its completion on November 12, 2023. and steered the band to become the first Korean act to enter
Tokyo Dome for a fan meeting. Treasure ushered a "reboot" project through a partnership with
Columbia Records for global distribution and local marketing in North America, in tandem to their first official sub-unit, T5, with So Jung-hwan, Junkyu, Jihoon, Yoon Jae-hyuk, and Doyoung. Its creation was fostered amidst those who raised their hands and believed to be the most "handsome" within the band, molding the self-proclaimed "flower boy quintet". Its digital single, "
Move", served as a pre-release for the decet's
second studio album, and marked Junkyu's first solely penned piece.
Reboot achieved a three-fold increase in sales since its last release, selling 1,718,517 copies across various formats in two days. Its titular single, "Bona Bona", reached a career high, charting at number 27 on the Circle Digital chart, and peaked at number 14 on the
Billboard Japan Hot 100, a personal best amongst their Korean releases. Its B-side, "B.O.M.B", received interest as it topped the
Billboard Hot Trending Songs chart, and became the band's first work to enter an official chart in the United Kingdom. In conjunction to their latest release, the band commenced on their second Asia tour, named after their second full-length album. Treasure released the digital single "King Kong", on May 28, 2024. In Japan, Treasure was selected to sing the opening song "Reverse" for the Japanese TV series
Densetsu no Atama Sho (Legendary Head Sho), starring
Fumiya Takahashi. It was further incorporated into the band's second Japanese single album,
King Kong / Reverse, and its release on August 21. Following New Year's Day, Junkyu and Asahi succeeded the leadership of the band from Choi Hyun-suk and Jihoon in 2025. For Treasure's third extended play (EP), a pre-release digital single titled "Last Night" was released on December 5, 2024. The EP
Pleasure, was released on March 7, 2025, with the lead single "Yellow". To thank Treasure Makers for their love and support,
YG announced a fan concert tour, titled "Special Moment". During this tour, they also traveled to the
United States, performing in 4 cities over 4 nights with an average of approximately 2,500 attendees per night. After their first US tour, they performed in 4 cities of Japan over 10 nights, connecting with a total of 150,000 fans just with the Japan tour alone. This pushed the group's total attendance in Japan past 970,000. The final show in
Saitama was broadcast live across more than 100 theaters nationwide and aired on
Fuji TV's satellite channel CS. Since September 1, 2025, Treasure returned with their third mini-album
Love Pulse, featuring the title track "Paradise", marking a more mature and dynamic musical and visual direction for the group. The EP's concept blends energetic pop and retro-disco-funk vibes, pairing bright, youthful energy with "heart-pulse" emotion, as the group presents "intense and diverse feelings" likened to the beat of love. The release sold over 1.13 million copies in its first week, becoming Treasure's first album to surpass one-million sales per Hanteo. Concurrently, Treasure launched their Pulse On concert tour, which kicked off with a three-day show (October 10–12) at the KSPO Dome in Seoul, showcasing an expansive set-list combining new tracks from
Love Pulse with older hits. The concert was described as powerful and immersive, with high production value, refined performances, and well-received stage presence. ==Public image==