Basically Sun and Moon series, but the legendarys for some reason or another are trying to see Ash, and most are trying to let Ash have a Armageddon Free Vacation/Journey. Will include disobedient Tapus, rogue Legendarys wanting to see there Favorite trainer, and Awkward reveals of Ash's past as a trainer. Ash is also 16 at this point, and getting a trainers license is basically Emancipation.

Ash's personality changing through every journey has been him trying to figure out the true him, finding himself, his Personality through Sun and Moon and Journeys is his true Personality.

Unova was a Vacation Journey, basically him not taking it to seriously, just a basic journey, where he was hoping for nothing serious to happen.

He actively trys to keep people from looking up his Trainer page, but when he tries to setting things to private, he's given a message that due to how frequently he runs into disaster, that he has been prohibited from setting those to private for the sake of others at least having the chance to know what they are getting into while around him.

All the Champions know him, and actively wish he'd get a break from the world saving while Journeying, Cynthia actually visits Ash during his off time, and Lance is his Uncle from his Moms side, though they didn't know that for a long time, due to Delia being a run away from the Clan and Lance believing she was dead for a solid 2 decades. Leon is actually just debating having Ash journey through Galar just to see if it'll have whatever is brewing in Galar will just show itself and everyone can get it out of the way, same with Geeta, Nemona just wants to battle him and his strongest pokemon.

Most Proper legendarys can turn into a Human form, these would be legitimate Gods, like the Lugia and legendary birds from The Power of One movie, the Sinnoh pantheon, the Legendary Fairys(Mew, Celebi, Victini, etc.)

Genders and general God look: Arceus(female, Greek), Dialga(male, Greek), Palkia(female, Greek), Giratina(Female, Greek), Darkrai(male, Casual), Creselia(female, casual), Ho-oh(female, shinto), Entei(male Shinto), Raikou(Male Shinto), Suicune(female, Shinto), Lugia(Male Shinto), Moltres(female Shinto), Articuno(female, Shinto), Zapdos(Female Shinto), G. Moltres(female Casual, malicious), G. Articuno(female Casual, Sadist and cunning), G. Zapdos(female Casual, Rude tomboy), Kyogre(Female Shinto), Groudon(male Norse), Rayquaza(Female, Greek), Mew(Female, Casual), Celebi(female, Shinto), Victini(Female, Greek), Shaymin(female, Greek), Manaphy(male, Casual, he sees Ash as a dad), Zekrom(male, only recently joined God rank, Knight), Reshiram(female, only recently joined God rank, knight), Xerneas(female, Norse), Yveltal(male, Norse), Zygarde(Squishy and Z2)(male, and Norse), Solgaleo(not Nebby, Female, Hawaiian/Greek, is Lesbian with Lunala), Lunala(Female, Hawaiian/Shinto, Lesbian with Solagaleo), Tapu koko(male, Hawaiian), Tapu Lele(female, Hawaiian), Tapu, Bulu(Male, Hawaiian), Tapu Fini(Female, Hawaiian), Zeraora(female, Greek, looks like a modified Atalante Alter from fate)

A good Majority of the female legendarys are interested in Ash due to personal encounter or Reputation, Solgaleo and Lunala actually half joke about having a threesome with him, and entrusting the child of said threesome with him to the other legendarys(they plan to do it Psychicly, cause apparently thats possible for them), much to the annoyance of the other girls, Ho-oh very much wants Ash to stay a Pure and Innocent boy, despite the fact he's experienced lots of Chaos.

The Galarian Birds are particular not impressed with how all the legendarys see Ash, and are considering going to Alola just to hurt him due to being annoyed by all the talk about him, but they clearly don't understand that a legendary just can't stay mad and not like Ash 'you don't need a reason to help someone' Ketchum. G. Moltres in particular won't be able to get him out of her head.

A good few of the legendarys don't fully understand the logic and mentality of humans and normal pokemon, some do, some don't.

Most Legendary pokemon are species that only one or two at a time are truly a God level being, but not all on the rank are that level of powerful.

The legendarys that watch over Ash are just done with Rotomdex's shit, him actively treating Ash like a dumb rookie, when he hasn't even considered Logging into Ash's Trainer Page like a proper Pokedex, until one of the Mythicals, Victini probably, has enough and rips into Rotomdex out of nowhere, appearing infront of the class and scaring the shit out of everyone as she just erupts in flames, yelling at this utter insult of a pokedex for its behavior to one of the best trainers it, and nearly every legendary has ever known, just because its to ignorant and arrogant to even think about the fact that Ash has a trainer page already and isn't some new inexperienced trainer.

Also, Ultra Recon Squad shows up during the Ultra Beast arc, and are dumbfounded at the idea of God's actively not wanting their Chosen one being the one to stop Apocalypse type disasters, Zossie may have a Puppy dog crush on Ash. They are from the same world as Poipole, the nest was out in the wilds, and they lost track and couldn't find Necrozma, in this timeline they were not responsible for Necrozma's state.