Cosplaying as a Blind Box Gets You into a Battle Royale

What kind of group would you end up with if everyone cosplayed a character of their own choosing without telling anyone else who they picked?

And how complicated could things get if the group had no shortage of people who loved stirring up trouble?

However you look at it, getting so complicated that everyone transmigrates into a battle royale cobbled together from who knows how many different works seems a bit much!

On one side, magical girls with all kinds of abilities fight monsters in the forest. On the other, they (not) struggle to survive on a deserted island with the Tenth Vongola Boss. Masters in the Holy Grail War face malice on all sides; mysterious gods sleep quietly in a fairy-tale world; superheroes caught in a mechanical crisis are sent flying by a cheerful witch...

The savior has quietly arrived, and a perilous battle is about to begin.

Everyone, in this situation, can you safely find all your companions and make it back to your own worlds?

In short, this is a cosplay transmigration battle royale where the author cuts loose. Anything goes, whether it's a game, manga, or novel, and the most outrageous works might suddenly show up.

The other sections list the cosplayers' fandoms.

The notes will be in the first chapter because the blurb is already too long.

Theme: People can become stars