How should I change my compiler setting to use Variable name with foreign language

Question

I've been only using English while naming any variables or functions.

But my client wants me to name all the variables in Korean.

I figured out naming variables in Korean is allowed in visual studio 2017 but not in visual studio code.

Is it possible to make visual studio code allow this as well?

Please see my errors below.

And My Setting in VSCode

c_cpp_properties.json

{
    "configurations": [
        {
            "name": "Win32",
            "includePath": [
                "${workspaceFolder}/*",

            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE"
            ],
            "windowsSdkVersion": "10.0.16299.0",
            "compilerPath": "C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/VC/Tools/MSVC/14.12.25827/bin/Hostx64/x64/cl.exe",
            "cStandard": "c11",
            "cppStandard": "c++17",
            "intelliSenseMode": "msvc-x64"
        }
    ],
    "version": 4
}

launch.json

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "C:/Users/lich_/GoogleDrive/MATLAB/HyoSeong_MATLAB_GUIImplementation/HITS_Hyosung/181031_HITS/C++Script/main.exe",
            ///input your file name including path.
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "miDebuggerPath": "C:/Program Files/mingw-w64/x86_64-8.1.0-posix-seh-rt_v6-rev0/mingw64/bin/gdb.exe",
            // minGW debugger path
            "preLaunchTask": "echo",
            // Enter your task name and first you build(your pretask, ) and debug
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ]
        }
    ]
}

tasks.json

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "echo",
            "type": "shell",
            "command": "g++",
            "args" : [
                "-g", "C++Script/main.cpp",
                "-o", "C++Script/main.exe"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        }
    ]
}