The screen shot from LFA1 does not really convince me. As it is already more than a decade that SAP does not use LFA1 for addresses. already with a 4.0B or something release SAP came up with central address management. So you need to look up the address number in LFA1 and then you need to see what you have in ADRC table for this address number.
And SAP does not automatically translate something that was entered in Japanese characters to Zulu language , so this value must have been taken from somewhere else than LFA1.
In general you should not have a mixture of different language in one record.
Using different languages in different fonts is usually covered with International address versions.
With this you get an extra button in your vendor master address screen and you maintain the address once in the Japanese and once with the international characters. SAP will then choose the address version case based, eg, Japan to Japan business it will use Japanese, and Japan to other countries it will use the alternative address version.