A Flareon Screaming Airport

Geologist!au wherein Yagi is a geologist in the earthquake/faults field, with lots of travel/field experience to get reads of the land and check out like the strata lines and history of earthquakes in the area. He tends to get really into learning geological history from the locals and he's well known in the geology community for his research where he collects local history from indigenous peoples and relates it all to their environment and the lay of the land and the way that it all informs everything because anthropology and geology are related and it's super cool.

And at some point Yagi is out working in the field as a consultant for some company because sometimes you end up doing that? and because building in the wrong spot on the wrong kind of land is super dangerous idk I’m in a liquefaction zone I get concerned about the big earthquake that’s supposed to be coming anywhere from the next five minutes to the next 500 years

ANYWAY Yagi is out and about and there’s a landslide and he saves the day because he’s Prepared because earthquakes and landslides are his /thing/ and its dumb but gets made into a big deal and suddenly people are demanding /books/ because hes a people person and amazing and so good with  communities and cares about history and hes such a hero!! And he is like. Yes, I will use this power for Good and he starts going harder into natural disasters and prep and Japan is very srs about earthquakes so they’re all *grabby hands* and all the geology groups and departments are also *grabby hands* and he ends up giving lectures and advocating for stuff and all that

Anyway

Aizawa is a grad student/instructor for introductory courses and specializes in mineral composition work at some research university in Japan. He really likes rocks. He's collected them for years and enjoys IDing them and learning about where they came from and how the local environmental history lead to the creation of certain rocks and all that fun stuff!!

Yagi is a visiting lecturer at Aizawa's university and Aizawa’s in charge of organizing everything and showing Yagi around and all that while hes there and they end up having lunch together a few times

Yagi has a small collection of neat rocks he'd found while doing land surveys and Aizawa jumps on it and Yagi ends up vowing to send him different rock samples because he's just eager for friends and a good guy like that so they exchange emails and Yagi starts making sure to collect a few rocks and some local information and sends little boxes out to Aizawa's mailbox at the university

Aizawa is of course smitten with his new rocks and having someone other than his fellow grad students to talk rocks with is great. He ends up learning a lot about all the places Yagi visits and is low key jealous he gets to travel so much while he's buried in research papers and grading student work and juggling a job at the nearest grocery store

During the following summer Yagi ends up inviting him out on an excursion to see some erratic boulders deposited by glacial floods thousands of years ago because if Aizawa is so excited by small rocks then surely he must want to see some BIG rocks and Yagi happens to be headed somewhere with really big rocks (specifically the Pacific Northwest because the Missoula Floods left rocks everywhere and also all the earthquake stuff here is srs and everytime something happens in Japan it affects us and when something happens here it affects Japan and our faults are just related like that so I’m dragging them here.)

Aizawa brings his rock hammer. That's not weird or unusual at all and they compare theirs and Yagi keeps laughing at the rock hammer for scale pics because he’s a little out of the loop but then he joins in

Yagi has a bad habit of licking the rocks he picks up to verify they are rocks as some people do, esp because he’s got history with like, anthropological work also and anthropologists and archaeologists like to lick rocks to prove they arent actually bone or pottery or anything like that 

They end up extending their trip like three times because the geologic stuff in the PNW is amazing and they check out the lava tubes and the caves and the gorge and the basalt formations and the waterfalls and like all the earthquake history in the area is really captivating especially with how it relates to Japan's earthquake history and the way that it all connects and everything

And maybe they go climb a mountain because a bunch of them are dormant volcanoes and the relation between volcanic activity and fault lines and earthquakes is neat right?