Basic info
- Stage name
- Martin마틴
- Birthday
- March 20, 2008
- Zodiac sign
- Pisces
- Zodiac animal
- Year of the Rat
- Group
- CORTIS · Active
- Group debut
- August 18, 2025· What You Want· age 17 at debut (by year)
- Agency
- BIGHIT MUSIC
- Fandom
- COER
About CORTIS
The third boy group from BIGHIT MUSIC after BTS and TOMORROW X TOGETHER. It started as a five-member group with every member in their teens at debut.
More on the group page☕ Find Birthday Cafes
Fans rent a café to celebrate a birthday. These events are usually held for a few days around the birthday. Organizers post notices as posters on X (Twitter), so find them right below. Birthday March 20, 2008
Register this birthday cafe for free All birthday cafe map →
Find more on social media
Birthday cafes (saengka) are unofficial events organized by fans. Always check the organizer's notice for dates, locations, and perks. Searching X or Instagram may require logging in.
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