Kim Seokjin.
23 (September,2016).
A PhD candidate.
Aspires to be a professor.

Kim Taehyung.
20 (September,2016).
A newly college-graduate.
Aspires to be a painter.

Kim Seokjin.
26 (April,2019).
Assistant Professor of a famous college in Seoul.

Kim Taehyung.
23 (April,2019).
A part-time Professor in the same college as Seokjin's.

Kim Namjoon.
24.
Seokjin's another colleague.

Park Jimin.
23.
Seokjin's Neighbor.

Jeon Jungkook.
21.
Seokjin's bestfriend.
Intern at a corporate company.