Tetsuya Nomura’s been sliding Final Fantasy Versus 13 references through the backdoor of Kingdom Hearts for years. And in the most on-brand move for the puzzling developer, even his clothes are now potentially dropping hints about how the canceled Final Fantasy game could connect to Kingdom Hearts 4.

Last week put an end to the Kingdom Hearts 4 news drought with Square Enix announcing that Pixar’s Coco will feature in the game, alongside playable King Mickey sections that are more focused on papercraft puzzles than the series’ signature floaty combat.

But perhaps the most notable and brain-scratching tidbit actually came from a shirt that series co-creator Tetsuya Nomura wore to a D23 panel discussing the game. Stick with me now. His plain black shirt had one simple logo printed on top: ‘Black Honey Chili Cookie.’

Real sickos might recognize Black Honey Chili Cookie as a fashion brand that appears in NEO: The World Ends With You, a beloved but overlooked JRPG that Nomura was heavily involved in as well. Of course, characters from the original The World Ends With You game have appeared in the Kingdom Hearts series before. Since The World Ends With You is set in Tokyo and Kingdom Hearts 4 sends us to an alternate version of the city, there’s a very real chance those characters could return in next year’s sequel.

How does any of this relate to Final Fantasy Versus 13, the game Nomura was supposed to direct before it was repurposed into Final Fantasy 15? Well, here’s where we enter a potentially fruitless rabbit hole.

The in-game shopkeeper of the Black Honey Chilli Cookie store is called Hiromu Takahara. Not so coincidentally, Hiromu Takahara also happens to be the name of the in-real-life fashion designer behind Final Fantasy Versus 13’s (and Final Fantasy 15’s) cast of characters. Hiromu Takahara’s inclusion in The World Ends With You was a heart warming tribute to Tetsuya Nomura’s once creative collaborator at the time – the Black Honey t-shirt is potentially something more.

Wouldn’t you have guessed it? Things get even more loopy from here. In the days since Kingdom Hearts 4’s Coco trailer, series fans have been combing over every frame for clues and found striking similarities between the city guards in Kingdom Hearts 4 and Final Fantasy 15. The design of the military airships in both games are almost an exact mirror of each other, too.

YouTuber The Night Sky Prince theorizes there’s a method behind the madness and there might even be some parallels between Kingdom Hearts 4’s narrative and the story Final Fantasy Versus 13 was supposed to tell. A foreign invasion of Kingdom Hearts’ Tokyo could be what spurs the series’ shadowy Heartless to begin wreaking havoc in the city, in the same way that the Empire of Niflheim spreads their own daemons across Final Fantasy 15 world, on top of whatever meta clues Nomura may sneak into the game.

While the theory is convoluted and requires a lot of background knowledge to understand, I’m convinced because it’s also perfectly in line with Kingdom Hearts’ already twisty-turvy, sometimes non-sensical lore. It wouldn’t be the first time Nomura’s referenced FF Versus 13 with all the subtlety of a bulldozer, either – the man seemingly can’t let go of his baby. But I also wouldn’t rule out the possibility this is all just a red herring that Kingdom Hearts fans, me included, are reading way too much into, as usual.

Whether the references are just references or something more remains to be seen. We’ll find out when Kingdom Hearts 4 “100%” comes out next year.

Kingdom Hearts 4 references a bit of OG lore so obscure I wouldn’t have blamed Tetsuya Nomura for forgetting it.