Is to release their board game, if that's a real thing.
For real tho, I'm a sucker for this kind of role playing games (like DnD or CoC). So, if their team is actually developing one, I wanna buy it 
Like that game in their trailer had a potential tho...
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Like imagine if their album is a package of a board game!
Releasing a board game that could be played multiplayer could be a unique way to promote the groups. (But Idk if the gp of SK like play board game or not)
If they didn't make it as a real game, maybe one day I'm gonna develop it on my own in my spare time.
