Safety First (Yunbyeol)
Tae-ho is in charge of Sejun, a newbie at the construction site. Tae-ho warns him to be careful because the site is dangerous, he's worried about the strangely over-eager Sejun. To top it off, he is burdened by Sejun, who keeps sniffing him and following him around- No way… is he fully aware and doing it on purpose…? "but Hyung… Are you in heat?"