[Aska_Badoura]

For what it's worth, most of my knowledge of TMNT comics is second-hand, and I didn't have a problem following. Andrew keeps track of everything and has footnotes when events from specific issues are referenced in the dialog, so you can look them up later if you're curious. There's also a few visual things that have more meaning if you know the background, but it doesn't get in the way of the storytelling.