The drama Yunho will be filming, Meloholic is scheduled to be broadcast both on the web and TV (cross-platform) details TBA [cr: mtvdaily, Translated by @snxy].
In an Instagram post from a staff/coordi (world7537: here and here) posted 5 and 6 days ago: they seem to have done a script reading/ costume/concept meeting. Also saying it is going to be 20 episodes and a romantic thriller (tagging it as a webdrama) [cr: translated by @snxy: here and here]
The SMPA police promotions unit were at the Lotte Buyeo Resort for a public transport workshop today. Seems OP is a staff of the resort overseeing them. Video shared below shows them performing Balloons~