How good is a annual salary of approximately 14 million JPY for a family of 3 or 4?

Just a curiosity of mine. I have a position that would earn me between 13-15 million JPY annually if I moved to Japan and have been wondering how that supports two adults and one to two children.
I did do some research but wasn't able to get a clear picture of what this kind of salary would enable my family to do. Some sources said it was very good while others suggested it could be better.
Mostly interested in things like housing costs, entertainment costs and options, and cost of things like meals or general needs like clothing. I am intentionally keeping this vague so as to attract a wider range of answers and considerations.

Edit: some information to clarify. My job in the US is commonly done remotely. I don't know how common remote work is in Japan for my industry though (BIM)
I would like to buy a house but don't expect to right away. My son is only 2 right now.
As long as public schools are good enough to ensure a good education that will suffice.
We would like to be able to travel occasionally. Nothing wild, but the ability to plan for a nice trip within a year or two will be nice.
Lastly anything that will be hard to determine from a google search would be helpful. One person mentioned that groceries are more expensive but restaurants are cheaper. That is a good example.
Assume I am stupid here because I am not well traveled and fail to consider a lot of elementary things.

by ShwaMallah

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