The main character was travelling through worlds since their own is gone, one time they landed in a world only to arrive in the world called Teyvat at the wrong time when a nation was being nuked by 'heaven'(Aka celestia) they try to escape the world but a god calling herself the sustainer of heavenly principles interecepts them and seals them.

500 years later MC wakes up, their powers are sealed and their siblings are gone, they fish up a little white fairy called paimon and then the journey starts.

The world setting is pretty interesting but i can't give it justice within just one comment.

First for the people in the world whenever their ambition reaches a high they might get an elemental vision granting them the ability to manipulate a certain element, for instance a girl one her last moment of live with the ambition to not want to die got an ice one, a pirate fighting a sea monster for a week with her fleet and finally beheading it got one, you also have some more mundane ambitions getting one such as feeling a vision would be very convenient.

the world was filled with 'gods' about 3000 years ago, until celestia opened up basically 7 positions of each element called archons.

The beings fought during the archon war and this has pretty cool stories, for instance the one in monstadt was a giant wolf called andrius freezing the entire country while the lord of the tower(called Decarabian) created a wind barrier around his city, not even the birds could pass through, he loved his people but not in the same way humans do, he thought them bowing their heads in fear was actually them showing revevrance for him.

The humans yearned for freedom, a bard ended up befriending a wind spirit and they shared the yearning for freedom, eventually they made a group with people such as Decarabian's wife called Amos and rebelled, the bard and Amos died, seeing the humans the wolf decided he isn't fit to rule over humans, the wind spirit gained faith energy and divinity and became the anemo(wind) archon called barbatos.

This is just one of the regions and there are seven in total without including the side regions, a lot of landscapes have their own lore, for instance the city surrounded by the wind barrier still remains and can be visited, the collection of mini islands? It's a result of the geo archon using mountains as spears to seal some of his foe? The cut running through multiple islands? It's a result of the electro archon slashing a giant sea snake and its skeleton can be found in the island.

The main story is mostly about the relationship between ideals of the archons and how its humanity's time to rule themselves, each archon has their own ideal for instance the anemo archon believes in freedom, the geo one in contracts, the electro one in eternity, and the dendro(plant) one in wisdom

For instance first regions main story is about a dragon having to fight a poisonous dragon five hundred years ago to protect the nation, eventually he won but the poison afflicted him and he went into a coma for 500 years, when he woke up and went to see the humans no one remembered him, now instead they looked at him with fear.

The second regions is about the geo archon wanting to let the humans rule themselves, he set up the circumstances for one of the enemies he sealed to be temporarily broken out to figure out whether the humans can now live on their own without him taking care of them.

The third region is about the archon's pursuit of stasis, locking the country and initiating a decree to confiscate people's visions.

The fourth region is about the mortals themselves being the corrupt ones this time.

Honestly a comment can't really explain everything, there are still a lot of things j didn't mention such as the world initially being inhabited by dragon before primordial one came and genocided them before seperating the microcosm of this world from the universe, people's fates actually being recorded in the stars, a nation of humans not ruled by archons creating giant machines and calling them field tillers for the fields are to be tilled with blood, the electro archon creating a puppet to house her conciousness before realizing it showed emotions and deciding to let it free to experience the world for itself, etc.

If you're interested here are some drawm cutscenes from the game:

the monstadt rebellion

the dragon's story

the electro archon's story

story of a character during the vision hunt decree

story of a character