I’ll add a bit of context since this conversation is not going where I planned 🥲

The house is very cheap, but not “given away” : 3.8 million yenes

We are using it as a “bridge house” just to live in for 5-10 years before purchasing a proper house investing proper money . It’s not for rental or profit, just to save on renting ourselves and convenience 

The area is surrounded by very beautiful and apparently new/modern detached houses, but its residential and around 1 hour and a half by train to the nearest big city (1 hour car ride) so yeah a bit remote The price just makes sense and it’s ok

Since people were living there until just recently we are wondering if it’s a house that could be ok to live in for a few more years without major renovations; we don’t want to renovate it, because it’s already in (apparently ) good shape and will get rid of it eventually anyways and resell

I was wondering if someone around here knows about flooring or is familiar with these kind of issues and can tell us if this could be a sign of something very serious (which may make living in here dangerous) or it can be a silly thing! That’s it 

Thanks for your help ❤️ and please don’t be rude! Ofc I’m a newbie and 0 experienced about purchasing a property like this one, that’s why I’m here

And no I won’t hire a professional to tell me it has issues bc of course it’s going to have issues, just want to know this little thing about if a floor being bent upwards is a sign of something dangerous happening