Can't understand playpick either

The content format is pretty much the same, it's about fighting bosses. I could do it with the first two, but not the third one. Saw someone on the forum post playpick as a limited-time story, I was speechless and laughed lol w I also saw one before, the game was still in pre-registration, and they left a comment on social media saying this game is fun (-ι_- )