[TMS] The New Adventure Tales of MapleStory

Jett if far cooler to me than Zen, but that aside I suppose they are just giving players 2 skill appareances to choose from for free?.

This. They have this skill in their beginner skill tab which allows you to swap the skill appearances from Zen to Jett and vice versa.

So I managed to get some clues from the latest CMST patch. Turns out that they are given the name "Acorn Detective Team".

Below are some of the images relevant to this update. *Alert: Image Heavy*

 Spoiler

I think the boss is that hyperspace cube thing, which also incorporates the spin wheel laser of Lotus' core. It also has some sort of achievement system which you get a reward box once you complete an achievement. Jett and Zen do not appear in this "chapter" yet so I suppose there should be further update in the future. I assume that the world map thing above is related to the HoM prelude event which they are also having in their test server right now.