Fuuuraiki (風雨来期) is an adventure game about traveling in Japan.

Fuuuraiki 1 OST:
https://www.youtube.com/watch?v=dfiZyZLB1bU

That channel used to have Fuuuraiki 2, 3, 4 but from the comments it looks like those got deleted.

Where can I download the music for 2?

This only has Fuuuraiki 1. https://downloads.khinsider.com/game-soundtracks/album/fuuraiki