diff --git a/ecspresso/reviewapps/ui-538/cleanup.sh b/ecspresso/reviewapps/ui-538/cleanup.sh
deleted file mode 100644
index 5596e3883..000000000
--- a/ecspresso/reviewapps/ui-538/cleanup.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-set -e -o pipefail
-cd $(dirname $0)
-
-find . -name "ecspresso.jsonnet" | xargs -I{} -P10 ecspresso --config={} delete --force --terminate ||:
-aws elbv2 describe-rules --rule-arn arn:aws:elasticloadbalancing:us-west-2:607167088920:listener-rule/app/dreamkast-dev/122c5b4a47b64f9d/bc86e7b2e4bca8f5/897bbde883c11eb1 &>/dev/null && aws elbv2 delete-rule --rule-arn arn:aws:elasticloadbalancing:us-west-2:607167088920:listener-rule/app/dreamkast-dev/122c5b4a47b64f9d/bc86e7b2e4bca8f5/897bbde883c11eb1
-aws elbv2 describe-target-groups --target-group-arn arn:aws:elasticloadbalancing:us-west-2:607167088920:targetgroup/dev-ui-538/cf3426ab4603f2e0 &>/dev/null && aws elbv2 delete-target-group --target-group-arn arn:aws:elasticloadbalancing:us-west-2:607167088920:targetgroup/dev-ui-538/cf3426ab4603f2e0
-:
diff --git a/ecspresso/reviewapps/ui-538/const.libsonnet b/ecspresso/reviewapps/ui-538/const.libsonnet
deleted file mode 100644
index aff4bc61f..000000000
--- a/ecspresso/reviewapps/ui-538/const.libsonnet
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-  PR_NAME: 'ui-538',
-  cluster: 'dreamkast-dev',
-  executionRoleName: 'dreamkast-dev-ecs-task-execution-role',
-  externalEndpoints: {
-    dk: 'https://development.dev.cloudnativedays.jp',
-    dkWeaver: 'https://dkw.dev.cloudnativedays.jp',
-  },
-  imageTags: {
-    dreamkast_ui: 'fb0cd581016dd13b2a28109eca316d47ff2938ee',
-  },
-  internalEndpoints: {},
-  publicSubnetIDs: [
-    'subnet-00709135a42bf907e',
-    'subnet-0d07831c8fc073511',
-    'subnet-033491d41490494b6',
-  ],
-  region: 'us-west-2',
-  secretManager: {
-    dkUi: 'dreamkast-ui/reviewapp-env-Cytidj',
-  },
-  targetGroupArn: {
-    dkUi: 'arn:aws:elasticloadbalancing:us-west-2:607167088920:targetgroup/dev-ui-538/cf3426ab4603f2e0',
-  },
-  taskTargetRoleName: 'dreamkast-dev-ecs-scheduled-task-target-role',
-}
diff --git a/ecspresso/reviewapps/ui-538/dreamkast-ui/ecspresso.jsonnet b/ecspresso/reviewapps/ui-538/dreamkast-ui/ecspresso.jsonnet
deleted file mode 100644
index efe977b9c..000000000
--- a/ecspresso/reviewapps/ui-538/dreamkast-ui/ecspresso.jsonnet
+++ /dev/null
@@ -1,9 +0,0 @@
-local const = import '../const.libsonnet';
-{
-  region: const.region,
-  cluster: const.cluster,
-  service: '%s-dreamkast-ui' % [const.PR_NAME],
-  service_definition: 'service-def.jsonnet',
-  task_definition: 'task-def.jsonnet',
-  timeout: '10m',
-}
diff --git a/ecspresso/reviewapps/ui-538/dreamkast-ui/service-def.jsonnet b/ecspresso/reviewapps/ui-538/dreamkast-ui/service-def.jsonnet
deleted file mode 100644
index 835ebb326..000000000
--- a/ecspresso/reviewapps/ui-538/dreamkast-ui/service-def.jsonnet
+++ /dev/null
@@ -1,9 +0,0 @@
-local dreamkast_ui = import '../../../base/dreamkast-ui.libsonnet';
-local const = import '../const.libsonnet';
-
-dreamkast_ui.serviceDef(
-  region=const.region,
-  subnetIDs=const.publicSubnetIDs,
-  securityGroupID='sg-026faf401f03b7bd4',  // dreamkast-dev-ecs-dreamkast-ui
-  targetGroupArn=const.targetGroupArn.dkUi,
-)
diff --git a/ecspresso/reviewapps/ui-538/dreamkast-ui/task-def.jsonnet b/ecspresso/reviewapps/ui-538/dreamkast-ui/task-def.jsonnet
deleted file mode 100644
index 95178bf7f..000000000
--- a/ecspresso/reviewapps/ui-538/dreamkast-ui/task-def.jsonnet
+++ /dev/null
@@ -1,18 +0,0 @@
-local dreamkast_ui = import '../../../base/dreamkast-ui.libsonnet';
-local const = import '../const.libsonnet';
-
-dreamkast_ui.taskDef(
-  family='dreamkast-dev-%s-ui' % [const.PR_NAME],
-  taskRoleName='dreamkast-dev-ecs-dreamkast-ui',
-  executionRoleName=const.executionRoleName,
-  imageTag=const.imageTags.dreamkast_ui,
-
-  region=const.region,
-  dkEndpoint=const.externalEndpoints.dk,
-  dkWeaverEndpoint=const.externalEndpoints.dkWeaver,
-
-  dkUiSecretManagerName=const.secretManager.dkUi,
-
-  enableLogging=true,
-  reviewapp=true,
-)
diff --git a/ecspresso/reviewapps/ui-538/initialize.sh b/ecspresso/reviewapps/ui-538/initialize.sh
deleted file mode 100755
index e2f72ccc6..000000000
--- a/ecspresso/reviewapps/ui-538/initialize.sh
+++ /dev/null
@@ -1,79 +0,0 @@
-#!/usr/bin/env bash
-set -e -o pipefail
-cd $(dirname $0)
-
-# required the following commands:
-# * aws
-# * jq
-# * jsonnet
-# * jsonnetfmt
-
-# variables
-PR_NAME=${PR_NAME:?"PR_NAME must be specified"}
-PR_NUMBER=${PR_NUMBER:?"PR_NUMBER must be specified"}
-IMAGE_TAG=${IMAGE_TAG:?"IMAGE_TAG must be specified"}
-LISTENER_RULE_PRIORITY_BASE=10000
-LISTENER_RULE_PRIORITY=$(( LISTENER_RULE_PRIORITY_BASE + PR_NUMBER ))
-
-VPC_ID="vpc-0f0d012967c635f34"
-LISTENER_ARN="arn:aws:elasticloadbalancing:us-west-2:607167088920:listener/app/dreamkast-dev/122c5b4a47b64f9d/bc86e7b2e4bca8f5"
-SERVICE_DISCOVERY_NAMESPACE="ns-53ijjrlltqf5r2gm"
-
-
-if [ ! -f "cleanup.sh" ]; then
-# create TargetGroup
-TARGET_GROUP_ARN=$(aws elbv2 create-target-group \
-  --name "dev-${PR_NAME}" \
-  --target-type ip \
-  --protocol HTTP \
-  --port 3000 \
-  --vpc-id ${VPC_ID} \
-  --ip-address-type ipv4 \
-  --health-check-path "/cndw2024/ui" \
-  | jq -r ".TargetGroups[0].TargetGroupArn")
-
-# create ALB ListenerRule
-LISTENER_RULE_ARN=$(aws elbv2 create-rule --listener-arn ${LISTENER_ARN} \
-  --priority ${LISTENER_RULE_PRIORITY} \
-  --conditions Field=host-header,Values="dreamkast-${PR_NAME}.dev.cloudnativedays.jp" \
-  --actions Type=forward,TargetGroupArn=${TARGET_GROUP_ARN} \
-  | jq -r ".Rules[] | select(.Priority == \"${LISTENER_RULE_PRIORITY}\") | .RuleArn")
-
-# replace variables in const.libsonnet
-cat << _EOL_ | jsonnet - > ./const.libsonnet.tmp
-local const = import './const.libsonnet';
-
-const + {
-  PR_NAME: "${PR_NAME}",
-  targetGroupArn: {
-    dkUi: "${TARGET_GROUP_ARN}",
-  },
-  imageTags: const.imageTags + {
-    dreamkast_ui: "${IMAGE_TAG}",
-  },
-}
-_EOL_
-mv const.libsonnet.tmp const.libsonnet
-
-# create cleanup.sh
-cat << _EOF_ > ./cleanup.sh
-#!/usr/bin/env bash
-set -e -o pipefail
-cd \$(dirname \$0)
-
-find . -name "ecspresso.jsonnet" | xargs -I{} -P10 ecspresso --config={} delete --force --terminate ||:
-aws elbv2 describe-rules --rule-arn ${LISTENER_RULE_ARN} &>/dev/null && aws elbv2 delete-rule --rule-arn ${LISTENER_RULE_ARN}
-aws elbv2 describe-target-groups --target-group-arn ${TARGET_GROUP_ARN} &>/dev/null && aws elbv2 delete-target-group --target-group-arn ${TARGET_GROUP_ARN}
-:
-_EOF_
-
-else
-# update imageTags
-jsonnet const.libsonnet \
-  | jq ".imageTags.dreamkast_ui|=\"${IMAGE_TAG}\"" \
-  > const.libsonnet.tmp
-mv const.libsonnet.tmp const.libsonnet
-
-fi
-
-jsonnetfmt -i const.libsonnet