8 days in Japan in February: suggestions for itinerary

Hi everyone! I was given the opportunity by my partner to travel with him to Japan as an anniversary trip and I couldn't be more excited!! He gets to see his family in Tokyo for a day but besides that he wants me to make an itinerary for the rest of the trip.

I love stationery and I know one of the places I wanna visit is kakimori in Tokyo and Zauo Shibuya to eat! But I'm a bit stuck on where else to go so I'd like to ask for some recommendations!

No particular budget in mind but we aren't high ballers for $500 omakases. I do think we will be in Tokyo mostly plus the neighboring areas like Hakone for sightseeing.

I'm looking for recommendations on stationery, computer parts, definitely want to see if anyone has gotten to explore the jazz scene too!

Sorry I don't have much to go off of, there's so many places I could visit but I need some guidance!

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