Keonho

Keonho's full name is Ahn Geon-ho (안건호). He was born on February 14, 2009—Valentine's Day—in Pajang-dong, Jangan-gu, Suwon, Gyeonggi-do, South Korea. Source: KProfiles

He is the maknae (youngest member) of CORTIS. Source: Kpop Fandom Wiki

Keonho has an older sister, born in 2005, and his family also has a pet Chihuahua named Cookie. Source: KProfiles

Before pursuing music, Keonho was a competitive swimmer who achieved impressive results in competitions and even set a personal best record before deciding to focus on becoming an idol during his first year of middle school. Source: NamuWiki

He was discovered by BIGHIT Music in 2018 while waiting at a bus stop after swimming practice with an older friend—an unexpected encounter that changed the direction of his career. Source: NamuWiki

His audition song for BIGHIT Music was BTS's "Dynamite," making it especially fitting that he would later debut under the same label. Source: KPopFancy

In April and May 2024, Keonho traveled to Los Angeles with the other CORTIS members for a songwriting camp, where the group worked on music for their debut album. Source: KPopFancy

Keonho is credited as both a writer and composer on all five tracks of CORTIS's debut EP COLOR OUTSIDE THE LINES. He also earned additional songwriting and composing credits on tracks from the group's GREENGREEN release. Source: KProfiles

Like fellow member Martin, Keonho is a dog person and prefers using wired earphones instead of wireless ones. Source: KProfiles

His favorite emojis are 🙃 and 🦛, and he especially likes vintage-toned and bright colors, with green and pink being his favorites. Source: KProfiles

Growing up, Keonho attended several different schools, including Pajang Elementary School, Yeoul Elementary School, and Chonggye Middle School, which he ultimately did not complete. Source: KProfiles

Even before CORTIS officially debuted, a short video of Keonho casually eating French fries at the airport went viral among fans, who were captivated by his visuals. Source: NamuWiki

Keonho has earned praise for his stable live vocals, maintaining strong vocal performances even while executing demanding choreography. Fans often highlight his performances during the chorus and bridge sections of CORTIS songs. Source: KbizoOm

On July 15, 2025, BIGHIT Music announced that Keonho had suffered fractures around both little fingers after a fall. As a result, he temporarily performed without full choreography during portions of CORTIS's early promotions and concert schedule while recovering. Source: Kpop Fandom Wiki

Fellow members often describe Keonho as thoughtful, gentle, and introspective off stage—a personality that contrasts with the bright, energetic image he displays during performances. Source: KbizoOm