🎉 CORTIS, celebrating 100 days since your debut! The dazzling journey of a monster rookie who rewrote K-POP history
✨ The Miracle of 100 Days: A Sprint Defying the Ordinary
In autumn 2025, the rookie group CORTIS burst onto the K-POP scene like a comet, turning the landscape upside down. They have now reached the monumental milestone of 100 days since their debut! (Truly congratulations!)
From the moment they debuted, CORTIS captured explosive attention, transcending a mere “rookie sensation” to be hailed as “pioneers of K-POP's generational shift”. Particularly in November, their astonishing 320% month-on-month growth in the idol brand reputation rankings, securing a TOP 4 position, proves just how phenomenal their first 100 days have been.
Let's explore the major milestones CORTIS achieved during this brief period and the bright prospects unfolding ahead.
👣 CORTIS's Dazzling 100-Day Journey (Debut to 100 Days)
CORTIS's success stemmed not only from meticulous planning but also from their “core weapon”, which precisely tapped into the fandom's desires.
1. [D+10] Dominating Short-Form Platforms and “Visual Shock”
CORTIS captured the hearts of the “short-form generation” the moment they debuted. Particularly, fan-cam footage showcasing member Gunho's visuals and overwhelming performance exploded virally on TikTok, Reels, and other platforms. Beyond official activities, fan-created challenges garnered immense views, becoming a decisive factor in skyrocketing the group's recognition from the very start.

2. [D+50] “Skilled Rookie” Title Confirmed
Had it ended merely as a flash in the pan, they would have remained a “briefly shining star”. CORTIS solidified their “skilled rookie” title by showcasing unparalleled live skills and stage command beyond their rookie status through music show performances and live content. This proved a core element in offering their fandom “something worth supporting long-term”.
3. [D+90] The Miracle of Entering the Brand Reputation TOP 4
Entering their third month since debut, CORTIS secured a place in the TOP 4 of the Idol Brand Reputation Rankings, one of the most authoritative indicators. This result, achieved by surpassing established major agency groups, was the moment that officially declared CORTIS had now established themselves not merely as newcomers, but as part of the K-POP market's mainstream.
CORTIS Call Billboard Chart Success ‘Surreal’ & Say ‘It’s Just the Beginning’
CORTIS discuss their Billboard chart success and more for new 'Billboard Brasil' digital cover story.
www.billboard.com
🔭 This is only the beginning: CORTIS's future outlook
The 100-day mark is not an end for CORTIS, but the new beginning of a grand journey. Having achieved the astonishing feat of reaching the TOP 4, K-POP fans now hold even greater expectations for them.
1. Accelerating Global Expansion
With a rapidly growing fanbase already forming in North America and Europe, CORTIS is expected to significantly intensify global promotions in their next activities. Much like their early days communicating with fans in various languages such as English and Spanish, they will prepare to leap to global stardom through world tours and appearances at major overseas festivals.
2. Challenge for the Rookie Grand Slam
As the group delivering the most overwhelming achievements this year, they stand a very high chance of achieving the Rookie Grand Slam at the upcoming year-end awards ceremonies. Their already secured brand recognition and fanbase momentum will give them a powerful advantage in the rookie award competition.
3. Next Target: The Top 3 and BTS's Stronghold
The most realistic yet exciting prospect is entering the Top 3 in brand reputation. Currently only a hair's breadth behind BLACKPINK and IVE, CORTIS has every chance of securing a Top 3 spot with their next comeback or new content release. Ultimately, they possess the potential to grow into the ultimate rival challenging the stronghold of “K-POP kings” BTS.
🎁 Cheering for the future ahead with CORTIS
Within just 100 days of their debut, CORTIS demonstrated to us that “nothing is impossible”. The passion and talent they displayed in such a short time, coupled with their strong bond with fans, are precisely why they will be cherished for years to come.
Once again, we sincerely congratulate CORTIS on their 100th day since debut and will cheer alongside their fans for the dazzling achievements yet to unfold!
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