Average-ish luck for Utawarerumono
https://youtu.be/j2oh9RYj4lM
But fairly bad luck for Neptunia's 2nd week characters
https://youtu.be/CAzS64SkZYA
There is definitely a lot of story for the Utawarerumono collaboration. I assume the people that worked on Utawarerumono also helped out with the story. (Assuming the same for Neptunia too, though)