| All | ✨Receive 1500VTs & Amazon Gift Card! Mingle with FanPlus event #20! | | | 486 | 8 | 0 |
| All | 🗳️Fanplus Voting Ticket Accumulation Guide | | | 1.6K | 5 | 1 |
| All | Over 10,000 cumulative views! Top 4 fan fictions loved by fans | | | 813 | 4 | 1 |
| All | ❤️See the ongoing EVENT at a glance❗ | | | 10K | 17 | 1 |
| All | 📸[Fanplus Photo Feature Update] Upload a photo and receive voting rights! | | | 2.8K | 27 | 1 |
| talk | [2025 Latest] Is So Kang Joon about to announce his marriage? A complete summary of his love life rumors and future plans! | | | 19 | 0 | 0 |
| talk | Seo Kang-joon starts to show his romantic gaze again | | | 9 | 0 | 0 |
| talk | Seo Kang-joon can do serious acting, comic acting, and action. | | | 18 | 0 | 0 |
| talk | Seo Kang-joon took on such a charming role. | | | 10 | 0 | 0 |
| talk | Kang Jun-nim looks great in both suits and casual clothes in the drama still cuts | | | 11 | 0 | 0 |
| talk | Undercover High School Seo Kang Joon Historical Drama Gif | | | 21 | 0 | 0 |
| All | Seo Kang-joon looks much more handsome | | | 20 | 0 | 0 |
| talk | Undercover Bogu | | | 15 | 0 | 0 |
| talk | I watched up to episode 4 of Undercover High School. It's fun. | | | 15 | 0 | 0 |
| All | Seo Kang-joon really shines in this drama. | | | 13 | 0 | 0 |
| All | Seo Kang-joon, who is leading the drama alone...he is working hard | | | 8 | 0 | 0 |
| All | How will National Intelligence Service agent Jeong Hae-seong (played by Seo Kang-joon) solve the case by disguising himself as a student through undercover investigation? | | | 12 | 0 | 0 |
| talk | Seo Kang-joon is helping the staff at the Undercover High School filming site. | | | 24 | 0 | 0 |
| talk | Seo Kang-joon, it's been a long time since your comeback, but I'm glad you're getting a good response | | | 18 | 0 | 0 |
| talk | Seo Kang-joon's new drama Undercover High School Seo Kang-joon is doing everything | | | 17 | 0 | 0 |
| All | I really hope that Seo Kang-joon's new project, which is coming out after a long time, does well | | | 19 | 0 | 0 |
| talk | I'm so excited for Undercover High School today! | | | 11 | 0 | 0 |
| All | MBC's 'Undercover High School' to be released simultaneously on TVING! | | | 11 | 0 | 0 |
| talk | Undercover High School This poster came out cute | | | 41 | 0 | 0 |
| talk | I'm looking forward to the new drama Undercover High School. | | | 33 | 0 | 0 |
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