RUN BTS - Bangtag Village in Jo-seon age.'who is the thief of Army-Bomb'

Hi, Army in world-wide.
Today, I'll introduce the newest episode of RUN BTS, the named 'Who is the thief of Army-Bomb'.

BTS members went to the past of Jo-seon age.
For your reference, Jo-seon is the lastest period of monarchy for Korea. It was about 13c-18c.

In Bangtan village, each member has a new job.

Suga became a village school teacher. A village school teacher always carry own cane.

J-hope became a royal secret investigator(undercover emissary[agent] of the king).

RM became a district magistrate.

V became a warrior.

Jk became a painter.

Jin became a physiognomist. Physiognomist means, someone who predict the future based on each other's face.

Jimin became a young master.

Who do you think is the culprit?