diff --git a/handwritten/spanner/.kokoro/continuous/node18/system-test.cfg b/handwritten/spanner/.kokoro/continuous/node18/system-test.cfg
deleted file mode 100644
index b50a1195edc2..000000000000
--- a/handwritten/spanner/.kokoro/continuous/node18/system-test.cfg
+++ /dev/null
@@ -1,12 +0,0 @@
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/nodejs-spanner/handwritten/spanner/.kokoro/system-test.sh"
-}
-
-env_vars: {
-  key: "SECRET_MANAGER_KEYS"
-  value: "long-door-651-kokoro-system-test-service-account"
-}
\ No newline at end of file
diff --git a/handwritten/spanner/.kokoro/presubmit/node18/system-test-regular-session.cfg b/handwritten/spanner/.kokoro/presubmit/node18/system-test-regular-session.cfg
deleted file mode 100644
index ffed97284db1..000000000000
--- a/handwritten/spanner/.kokoro/presubmit/node18/system-test-regular-session.cfg
+++ /dev/null
@@ -1,27 +0,0 @@
-# Download resources(service account key, etc.) for system tests when multiplexed session is enabled
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/nodejs-spanner/handwritten/spanner/.kokoro/system-test.sh"
-}
-
-env_vars: {
-  key: "SECRET_MANAGER_KEYS"
-  value: "long-door-651-kokoro-system-test-service-account"
-}
-
-env_vars: {
-  key: "GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS"
-  value: "false"
-}
-
-env_vars: {
-  key: "GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_PARTITIONED_OPS"
-  value: "false"
-}
-
-env_vars: {
-  key: "GOOGLE_CLOUD_SPANNER_MULTIPLEXED_SESSIONS_FOR_RW"
-  value: "false"
-}
\ No newline at end of file
diff --git a/handwritten/spanner/.kokoro/presubmit/node18/system-test.cfg b/handwritten/spanner/.kokoro/presubmit/node18/system-test.cfg
deleted file mode 100644
index b50a1195edc2..000000000000
--- a/handwritten/spanner/.kokoro/presubmit/node18/system-test.cfg
+++ /dev/null
@@ -1,12 +0,0 @@
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
-env_vars: {
-    key: "TRAMPOLINE_BUILD_FILE"
-    value: "github/nodejs-spanner/handwritten/spanner/.kokoro/system-test.sh"
-}
-
-env_vars: {
-  key: "SECRET_MANAGER_KEYS"
-  value: "long-door-651-kokoro-system-test-service-account"
-}
\ No newline at end of file
diff --git a/handwritten/spanner/.kokoro/system-test.sh b/handwritten/spanner/.kokoro/system-test.sh
deleted file mode 100755
index 2d3e0732f110..000000000000
--- a/handwritten/spanner/.kokoro/system-test.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/bin/bash
-
-# Copyright 2018 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set -eo pipefail
-
-export NPM_CONFIG_PREFIX=${HOME}/.npm-global
-
-# Setup service account credentials.
-export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/secret_manager/long-door-651-kokoro-system-test-service-account
-export GCLOUD_PROJECT=long-door-651
-
-cd $(dirname $0)/..
-
-# Run a pre-test hook, if a pre-system-test.sh is in the project
-if [ -f .kokoro/pre-system-test.sh ]; then
-    set +x
-    . .kokoro/pre-system-test.sh
-    set -x
-fi
-
-npm install
-
-# If tests are running against main branch, configure flakybot
-# to open issues on failures:
-if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]] || [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"nightly"* ]]; then
-  export MOCHA_REPORTER_OUTPUT=test_output_sponge_log.xml
-  export MOCHA_REPORTER=xunit
-  cleanup() {
-    chmod +x $KOKORO_GFILE_DIR/linux_amd64/flakybot
-    $KOKORO_GFILE_DIR/linux_amd64/flakybot
-  }
-  trap cleanup EXIT HUP
-fi
-
-npm run system-test
-
-# codecov combines coverage across integration and unit tests. Include
-# the logic below for any environment you wish to collect coverage for:
-COVERAGE_NODE=18
-if [[ $(node -v) == v${COVERAGE_NODE}.* ]]; then
-  NYC_BIN=./node_modules/nyc/bin/nyc.js
-  if [ -f "$NYC_BIN" ]; then
-    $NYC_BIN report || true
-  fi
-  bash $KOKORO_GFILE_DIR/codecov.sh
-else
-  echo "coverage is only reported for Node $COVERAGE_NODE"
-fi
diff --git a/handwritten/spanner/.kokoro/trampoline_v2.sh b/handwritten/spanner/.kokoro/trampoline_v2.sh
index a54f3047ae69..a2c010d5870e 100755
--- a/handwritten/spanner/.kokoro/trampoline_v2.sh
+++ b/handwritten/spanner/.kokoro/trampoline_v2.sh
@@ -45,7 +45,7 @@
 #
 # Here is an example for running this script.
 #   TRAMPOLINE_IMAGE=gcr.io/cloud-devrel-kokoro-resources/node:18-user \
-#     TRAMPOLINE_BUILD_FILE=.kokoro/system-test.sh \
+#     TRAMPOLINE_BUILD_FILE=.kokoro/test.sh \
 #     .kokoro/trampoline_v2.sh
 
 set -euo pipefail