[blimp]

i'll avoid making any comments concerning your age and the fairly short period of time spent together and move straight on to your first obstacle to life in japan; visa.

the more of a stable situation your can show the immigration officer the easier it is to get a visa. here age, time spent together, financial situation etc. come in to play. now, i am not an immigration officer nor an immigration solicitor, but i would still stick out my neck and say that you could experience some problems when applying for a visa due to the above mentioned issues.

furthermore, if i am correct you will also be required to have the consent of both your mother and your father as you seem to be below 20 at the time of the planned marriage. in japan you, as a man, need to be 18 to be able to marry.