Untitled

My thought process:

Gintama-Natsume:

- If someone uses an umbrella on a sunny day, this umbrella is either bulletproof or yokaiproof. Either way, beware;

- In the Onmyoji arc, Gintoki didn't suffer for a long time, and he also kinda had it coming simply for being himself and being the protagonist of a slapstick violence comedy manga. Natsume has been dealing with hexorcists-induced problems for more than 100 chapters, and he does not deserve any of this (it builds character, though. and teaches him and them valuable lessons).

Natsume-Tsugai:

- Nyanko-sensei claims he's not a cat (do we believe him?). Kotetsu's true form may or may not be a tiger (so, basically, a big cat);

- Not a day passes without me mistaking an Asa fanart for a Matoba fanart;

- the aroace coded MC part does not need an explanation.

Tsugai-Gintama:

EDIT: shit!! I forgot the balls!

- Arakawa is a Star Wars fan, so the human Makoto's birthday (May 4th) may or may not be a reference; Gintama has two Star Wars arcs (the Renho arc and the Beam Sword Style arc);

- Dera plans to (and no one can convince me he has never) drink on Jin's tab; Gintoki... see episode 316, which, I'd say, counts. And the gambling part is obvious.

All three:

- Ishida is in anime adaptations of all three mangas. I don't know what to add;

- Each of these three mangas has a butterfly guy with a shady smile (these aren't even their only similarities), and this fact is the main reason this diagram even exists;

- Gintama focuses on (found) families and ends without canonizing any of its teased ships; NatsuYuu is about friendship and family, romance is something that mostly happens in the background and to characters who appear for a single arc (and Natsume himself has no interest in romance); and YnT only has a fake marriage (the romantic feelings seem to be pretty one-sided, if there are any), and whatever Asa and Gab's deal is (no explicit romance, though. what i choose to see it as is not canon yet);