Quote Originally Posted by The White Wizard of Fynn View Post

Oh, they're not spinoffs. Just because they don't have numbers doesn't mean they are side stories. Pretty much every entry is a main entry. Aside from coded. That one kinda sucked and had no relevance whatsoever.
I feel the same is true for 358. It's definitely a side as it introduces a character/villain that never should have existed in canon and it offers very little in regard to the canon story.