I started attending English course, which focuses on improving your accent, back in August and finished it tonight. It consists of eight private lessons and a qualification test following. I luckily passed the test and got qualified with this level which is equivalent to European according to their description. Yes, European is recognized better English speaker than Asian in terms of accent.
This school’s method is to train your muscles which are needed to produce some sounds that Japanese people are not good at such as “th”, “f” and “r”.
I haven’t decided yet if I take next level. Continuous practice by myself would make difference anyways.