Have you thought about using the sword of Olympus from the game god of war and the yamato sword from virgil from the game devil may cry?
And as a second world it can be skyrim, bioshock or nier automata

I love your story by there is one thing that is a bit annoying and that is the days part because he went to the world of HP after 10 days and git there during the summer but after a year he is still in school and they haven't even done the third part of the exam yet? But other then that love your story

Great chapter keep it up

Bleach sword type weapon (3 stages)

Awesome

A magically expanded RV or luxury bus would be a great idea. Even if they end up in medieval world, they'll have all the luxuries of the modern. If they end up in a hyper advanced world then they can upgrade their vehicle with those technologies.

Thanks for the chapter!

looks like this world Is coming to a close here pretty soon, wonder what's next? MHA would be fun, or DxD and claim that canon rias is a clone and swap them. or a really short world like Yu-Gi-Oh that would only take 2-3 chapters. sounds fun!

wasn't the Gremory clan trait "The devil's luck"?

nice chapter, when will he buy that sharing ability from the shop? Where will he go next? hotd or somewhere else?

lol, re-reading this and saw the mention of Yu-Gi-Oh duel disks, I doubt he would ever go but would be hilarious if he bought cards in this world and used them in a Yu-Gi-Oh world

please never stop updating

cant wait for next chapter. keep up the good work

Awesome

Nice, you updated, enjoyed the chapter!