Thank you every one, Merci!
I'm not sure the history of my car before my father bought but MK1 GTI was not officially imported into Japan by VWJAPAN when they are on sale.
So all GTI in Japan should be imported through import car dealer for the person who needed it.
Do you know how to check the history of the car?
In Japan, we can't find any of these kind of services.
I know 10 GTI and 1 Oettinger 16S are still running in Japan at least, but there're no Clubs like GGCC at present.
I'm using with seat covers currently and base color of the seat is silver stripes.
The original seat fabric was red plaid design.
The door mirror is not original but made by Vitaloni, and can not be adjusted from inside of the car.
As Bils said before, the door card was replaced to the original GTI version which doesn't have the hole for mirror knobs currently

.
We can find the indicator on the front fender all of Golf1 in Japan.
This indicator lens was originally used for Porsche?(I heard it before ...).
Japanese road regulation said that the car must have the indicator on the side of the car, so VW attached it onto export model for Japan.
The open vent window was already fitted when he came our home.
Tow hook on the front lower panel was added in the process of restoration.
Fuel distributor and air flow meter is using DX version, and the throttle is big throttle got from Audi 100.
If you have any questions feel free to ask me
Merci
Makky.