Is it good idea after graduate japan university to go LONDON for life settle and work ?

I have been concerning for a while that i came in japan over 6 month and i already understand the future in here.i didn’t like the rules or culture in here.I actually want to move in London(it is ok to choose other Europe country).if i graduate any engineering course in japan university,can i get work in London easily?or is it hard to find?and the main question is the value of japan certificate in Europe country.how the government see the japan certificate?

Plz help me!!!