Is guia design office legit for buying a house in japan?

Hi everyone!

I came across Guia Design Office on Facebook, and they seem to offer houses for foreigners in Japan. I’m curious if anyone here has experience with them.
• Is it legit?
• Has anyone actually purchased a house through them?
• Are they really foreigner-friendly?

Any insights, experiences, or warnings would be super helpful! Thank you so much in advance!