Yoo Young-Bok
The partnership between Ha-neul and Bo-ra start wavering in the midst of launching their startup when their firefighting thermal imaging camera project fails followed by a notice to move out of their studio due to outstanding monthly rent. As things go from bad to worse, a strange man suddenly appears in the middle of their studio, insisting that the place is his factory.
Yong-su
At his mother's 70th birthday party, Yong-nam runs into Eui-joo, who rejected him in college. When the city is engulfed in toxic gas from a terrorist attack, the two must find a way to escape using all the techniques they learned in their college rock climbing club.
Lee-So man (Part timer)
In the cartoon room, Joo Yeon, who got spoiler, starts the mystery of finding the criminal!
