You can never ever relight a story line boss?!

I’m currently trying to complete the journal.

I only have 3 foods left and one of them is the 2 star spider roll. I locked it up and saw that I can ONLY get it through beating the fab fairy spider. And since it’s a boss from the story line I can’t retake it. But how did I never received it in the first place?! It’s making me mad😭