This is a definition of google style map. Only intersection name is shown in Japan.

style.json

[
  {
    "featureType": "administrative",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "landscape",
    "elementType": "geometry.fill",
    "stylers": [
      {
        "color": "#c1fcc0"
      },
      {
        "visibility": "on"
      }
    ]
  },
  {
    "featureType": "landscape",
    "elementType": "geometry.stroke",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "landscape",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "landscape",
    "elementType": "labels.text",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "poi",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road",
    "elementType": "geometry.fill",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road",
    "elementType": "geometry.stroke",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "simplified"
      }
    ]
  },
  {
    "featureType": "road",
    "elementType": "labels.text.fill",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road",
    "elementType": "labels.text.stroke",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.arterial",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.arterial",
    "elementType": "labels.text",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.highway",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.highway.controlled_access",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.highway.controlled_access",
    "elementType": "labels.text",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.local",
    "elementType": "geometry",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.local",
    "elementType": "labels.icon",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "road.local",
    "elementType": "labels.text",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "transit",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  },
  {
    "featureType": "water",
    "stylers": [
      {
        "visibility": "off"
      }
    ]
  }
]