diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6d3bc9c..c20ef98 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -34,6 +34,8 @@ jobs:
     if: github.event_name == 'pull_request'
     name: runner / terraform validate (github-pr-review)
     runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
     steps:
       - uses: actions/checkout@v4
       - uses: ./
@@ -43,6 +45,3 @@ jobs:
           level: error
           reviewdog_flags: -filter-mode=file -fail-on-error
           workdir: ./testdata/
-          envvar: |
-            KEY1=value1
-            KEY2=value2
diff --git a/.gitignore b/.gitignore
index 34a39ac..08b09b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 # Folders to ignore
-.vscode/
\ No newline at end of file
+.vscode/
+.DS_Store
+.terraform
diff --git a/README.md b/README.md
index bebd343..5ee2f98 100644
--- a/README.md
+++ b/README.md
@@ -7,8 +7,8 @@
 [![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/maruLoop/action-terraform-validate?logo=github&sort=semver)](https://github.com/maruLoop/action-terraform-validate/releases)
 [![action-bumpr supported](https://img.shields.io/badge/bumpr-supported-ff69b4?logo=github&link=https://github.com/haya14busa/action-bumpr)](https://github.com/haya14busa/action-bumpr)
 
-![github-pr-review demo](https://user-images.githubusercontent.com/3797062/73162963-4b8e2b00-4132-11ea-9a3f-f9c6f624c79f.png)
-![github-pr-check demo](https://user-images.githubusercontent.com/3797062/73163032-70829e00-4132-11ea-8481-f213a37db354.png)
+![github-pr-review demo](images/pr-comment.png)
+![github-pr-check demo](images/pr-check.png)
 
 This action runs [terraform validate](https://developer.hashicorp.com/terraform/cli/commands/validate) with [reviewdog](https://github.com/reviewdog/reviewdog) on pull requests to improve experience.
 
@@ -43,10 +43,6 @@ inputs:
     description: 'Additional reviewdog flags'
     default: ''
   ### Variables for Terraform  ###
-  terraform_init_options:
-    description: 'options for terraform init to pass backend configuration and so on'
-  envvars:
-    description: 'Environment variables for terraform init to pass backend configuration'
   terraform_version:
     description: 'The terraform version to install and use. The default is `latest`'
 ```
@@ -70,6 +66,4 @@ jobs:
           # Change reporter level if you need.
           # GitHub Status Check won't become failure with warning.
           level: warning
-          envvars: |
-            AWS_REGION=ap-northeast-1
 ```
diff --git a/action.yml b/action.yml
index 1618698..b4ecf85 100644
--- a/action.yml
+++ b/action.yml
@@ -29,10 +29,6 @@ inputs:
     description: 'Additional reviewdog flags'
     default: ''
   ### Variables for terraform validate ###
-  terraform_init_options:
-    description: 'options for terraform init to pass backend configuration and so on'
-  envvars:
-    description: 'Environment variables for terraform init to pass backend configuration'
   terraform_version:
     description: 'The terraform version to install and use. The default is `latest`'
 runs:
diff --git a/entrypoint.sh b/entrypoint.sh
index 6d56538..4494fd3 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -7,12 +7,9 @@ if [ -n "${GITHUB_WORKSPACE}" ] ; then
 fi
 
 export REVIEWDOG_GITHUB_API_TOKEN="${INPUT_GITHUB_TOKEN}"
-echo "${INPUT_ENVVARS}" | while IFS= read -r line; do
-  export line
-done
 
+terraform init -backend=false
 # shellcheck disable=SC2086
-terraform init ${INPUT_TERRAFORM_INIT_OPTIONS}
 terraform validate -json \
   | jq -r '.diagnostics[] | "\(.range.filename):\(.range.start.line):\(.range.start.column): \(.detail)"' \
   | reviewdog -efm="%f:%l:%c:%m" \
diff --git a/images/pr-check.png b/images/pr-check.png
new file mode 100644
index 0000000..dfb7226
Binary files /dev/null and b/images/pr-check.png differ
diff --git a/images/pr-comment.png b/images/pr-comment.png
new file mode 100644
index 0000000..3539727
Binary files /dev/null and b/images/pr-comment.png differ