Yoon Du-jun of Highlight and DK of SEVENTEEN engaged in a fierce yet playful psychological battle to guess each other's identities.

In a video recently released on the YouTube channel 'KODE,' the two started a conversation using the nicknames 'Messi' and 'Ohtani'. From the beginning, they identified each other's tendencies through their shared interest in sports.

In particular, DK showcased his sharp MBTI analysis skills to uncover Yoon Du-jun's identity. After observing Yoon's personality, DK guessed, "I think you're an INFJ," which flustered Yoon as it perfectly matched his actual MBTI. Meanwhile, Yoon Du-jun, who identified himself as an 'ISTJ,' showed his quirky charm by admitting, "Actually, I don't know my MBTI very well".

Yoon Du-jun also displayed impressive reasoning skills. After checking DK's smartphone home screen and seeing apps neatly organized into folders, he confidently remarked, "This is definitely a 'manly older brother' style," causing laughter as he became convinced the other person was older than him.

The decisive hint came from 'Italy'. When DK mentioned that the dog photo on his home screen was taken during a shoot in Italy, Yoon Du-jun immediately thought of 'NANA TOUR with SEVENTEEN' and became certain the person was a SEVENTEEN member.

Upon confirming each other's identities, the two shared a heartwarming meeting, mentioning their friendship with SEVENTEEN member Seungkwan. Yoon Du-jun promised a future meeting, telling DK, "Let's all grab a meal together with Seungkwan sometime".

Fans who saw the video responded with comments like, "It's goosebumps how DK guessed the MBTI," "It's amazing how they both love soccer and Infinite Challenge," and "The meeting between the two groups is so heartwarming."