Fairy, Yokai, Jini, Ghost are the AGI (Artificial General Intelligence) that allow access to Hollow Zero freely, whenever you want. They nature and existence are one of the mysteries of the story. This trailer is like the one from Genshin with regions and Archons, this is the future guide line for major content.

4:42 This reaction caught me off-guard! 11:47 Would be really funny if this was the official explanation.

These are past characters. All of them could get the Duke Inferno treatment where they get a trailer reveal but are dead when we progress through the story

"Killjoy", seems like that was just her calling the guy out for interrupting her fun. Oh yeah, I hope we will get Joyous and that mech guy from merc group asap :D Duke Inferno got Isekaied by Galactic Ranger ;)

Im in chapter 2 right now. so, relating this video with the story jinni is active, when you progress through the game story you activate fairy and jinni recognizes it, mentioning youkai and ghost are offline.

My guess in the future story, we'll get the other three AIs (Jinni, Ghost, and Youkai).

Jinni, Ghost, Youkai are AIs like Fairy

Looking forward to Miyabi...but that Kaneki looking characters looks like my next pick

they are like aeons of hsr not playable

Bud does not know Ruain Mei I can't spell

ok so as a story reader whos in chapter 2 right now.. i believe this video is about the past. the seven are akin to the 7 flamechasers in honkai impact, each had a pivotal role dealing with the hollow crisis when it emerged. the dual eye colour sun chick is kiana expy, the purple pony tail girl gives me strong mei vibes probably an expy and then the pink haired angel woman is hardcore elysia vibes. the swormaster is not miyabi, but one of her ancestors. as for youkai, ghost, fairy, and jinni those were all mentioned in the story. some mysterious group seems to want all the AIs to wake up they are like keys to something, we dont really know anything about it so far at least as far as I am in the story. according to this video it seems like jinni was awake and wanted the other AIs to wake up but the others were offline, and this seems to be taking place just before new eridu was created so i presume its like just after eridu got destroyed or something. its kind of hard to tell exactly 100% the timeline.

Fun common sense: its annoying for viewers if you pause the video every second

I cant afford the roll as a f2p 😢