Paper short abstract:

In this study, the publisher carried out an interview investigation of OPI for running in response to the request (I want to know the Japanese speaking ability of their own) of the foreign learner who settled down in the Japanese A area from Welfare Linguistics (the welfare linguistics)-like point of view.

Paper long abstract:

In this study, the publisher carried out an interview investigation of OPI for running in response to the request (I want to know the Japanese speaking ability of their own) of the foreign learner who settled down in the Japanese A area from Welfare Linguistics (the welfare linguistics)-like point of view.

In this presentation, while the letter of the interview is based on data in this longitudinal study list, the publisher focus on a learner (learner A) from Korea which made trial and error in interval of Japanese (Japanese culture) and Korean (Korean culture) mainly.

She (learner A) visits Japan in 50 generations, and it is going to be a quarter of century (25 years) during the stay in Japan period. Her age became in its 70s now. About Japanese as the second language that she has learned, she began to transform until now from the acquisition process to a process of the wear (extinction). the publisher wants to refer to the feedback information after result and OPI of the interview about her language life.

In addition, the publisher wants to examine "what kind of support and care will be necessary for the learner in future in the old age of the learner who lived in interval of plural languages, culture?" based on the data which I collected so far.