Everything can be sorted into one of these 6 eras:
The bebeh era.
School shenanigans and the entire First Arc!!
The timeskip! What the fuck did Mello do to get into the mafia?? Answers!!
Big bad evil fun mafia time >:)c oh and half the second arc.
Mello recovering and being a pain in everyone’s ass. End of Kira, end of story.
But wait, they lived, so what now…?