diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 5c4ad77e756fa..1ef667376b616 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -218,7 +218,6 @@ simulator/fault_injection/** keisuke.shima@tier4.jp
simulator/learning_based_vehicle_model/** maxime.clement@tier4.jp nagy.tomas@tier4.jp
simulator/simple_planning_simulator/** mamoru.sobue@tier4.jp maxime.clement@tier4.jp takamasa.horibe@tier4.jp temkei.kem@tier4.jp tomoya.kimura@tier4.jp zulfaqar.azmi@tier4.jp
simulator/vehicle_door_simulator/** isamu.takagi@tier4.jp
-system/autoware_auto_msgs_adapter/** isamu.takagi@tier4.jp mfc@leodrive.ai
system/bluetooth_monitor/** fumihito.ito@tier4.jp
system/component_state_monitor/** isamu.takagi@tier4.jp
system/default_ad_api/** isamu.takagi@tier4.jp ryohsuke.mitsudome@tier4.jp yukihiro.saito@tier4.jp
diff --git a/system/autoware_auto_msgs_adapter/CMakeLists.txt b/system/autoware_auto_msgs_adapter/CMakeLists.txt
deleted file mode 100644
index a8b72b8da688c..0000000000000
--- a/system/autoware_auto_msgs_adapter/CMakeLists.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-cmake_minimum_required(VERSION 3.14)
-project(autoware_auto_msgs_adapter)
-
-find_package(autoware_cmake REQUIRED)
-autoware_package()
-
-set(NODE_NAME ${PROJECT_NAME}_node)
-set(EXEC_NAME ${PROJECT_NAME}_exe)
-set(TEST_NAME test_${PROJECT_NAME})
-
-ament_auto_add_library(${NODE_NAME}
- src/include/adapter_base.hpp
- src/include/adapter_base_interface.hpp
- src/include/adapter_control.hpp
- src/include/adapter_map.hpp
- src/include/adapter_perception.hpp
- src/include/adapter_planning.hpp
- src/include/autoware_auto_msgs_adapter_core.hpp
- src/autoware_auto_msgs_adapter_core.cpp)
-
-rclcpp_components_register_node(${NODE_NAME}
- PLUGIN "autoware_auto_msgs_adapter::AutowareAutoMsgsAdapterNode"
- EXECUTABLE ${EXEC_NAME})
-
-if(BUILD_TESTING)
- file(GLOB_RECURSE TEST_SOURCES test/*.cpp)
- ament_add_ros_isolated_gtest(${TEST_NAME} ${TEST_SOURCES})
- target_include_directories(${TEST_NAME} PRIVATE src/include)
- target_link_libraries(${TEST_NAME} ${NODE_NAME})
-endif()
-
-ament_auto_package(INSTALL_TO_SHARE
- launch
- config)
diff --git a/system/autoware_auto_msgs_adapter/README.md b/system/autoware_auto_msgs_adapter/README.md
deleted file mode 100644
index 67fabaaa46c9a..0000000000000
--- a/system/autoware_auto_msgs_adapter/README.md
+++ /dev/null
@@ -1,102 +0,0 @@
-# autoware_auto_msgs_adapter
-
-This package is used to convert `autoware_msgs` to `autoware_auto_msgs`.
-
-## Purpose
-
-As we transition from `autoware_auto_msgs` to `autoware_msgs`, we wanted to provide flexibility and compatibility for
-users who are still using `autoware_auto_msgs`.
-
-This adapter package allows users to easily convert messages between the two formats.
-
-## Capabilities
-
-The `autoware_auto_msgs_adapter` package provides the following capabilities:
-
-- Conversion of supported `autoware_msgs` messages to `autoware_auto_msgs` messages.
-- Can be extended to support conversion for any message type pairs.
-- Each instance is designed to convert from a single source message type to a single target message type.
-- Multiple instances can be launched to convert multiple message types.
-- Can be launched as a standalone node or as a component.
-
-## Usage
-
-Customize the adapter configuration by replicating and editing the `autoware_auto_msgs_adapter_control.param.yaml` file located
-in the `autoware_auto_msgs_adapter/config` directory. Example configuration:
-
-```yaml
-/**:
- ros__parameters:
- msg_type_target: "autoware_auto_control_msgs/msg/AckermannControlCommand"
- topic_name_source: "/control/command/control_cmd"
- topic_name_target: "/control/command/control_cmd_auto"
-```
-
-Set the `msg_type_target` parameter to the desired target message type from `autoware_auto_msgs`.
-
-Make sure that the `msg_type_target` has the correspondence in either:
-
-- [schema/autoware_auto_msgs_adapter.schema.json](schema/autoware_auto_msgs_adapter.schema.json)
-- OR [src/autoware_auto_msgs_adapter_core.cpp](src/autoware_auto_msgs_adapter_core.cpp) `AutowareAutoMsgsAdapterNode::create_adapter_map()` method.
-
-(If this package is maintained correctly, they should match each other.)
-
-Launch the adapter node by any of the following methods:
-
-### `ros2 launch`
-
-```bash
-ros2 launch autoware_auto_msgs_adapter autoware_auto_msgs_adapter.launch.xml param_path:='full_path_to_param_file'
-```
-
-Make sure to set the `param_path` argument to the full path of the parameter file.
-
-Alternatively,
-
-- You can replicate and edit the launch file to suit to your needs.
-- You can make use of the existing launch file in another launch file by providing the parameter file path as an
- argument.
-
-### `ros2 run`
-
-```bash
-ros2 run autoware_auto_msgs_adapter autoware_auto_msgs_adapter_exe --ros-args --params-file 'full_path_to_param_file'
-```
-
-Make sure to set the `param_path` argument to the full path of the parameter file.
-
-## Contributing
-
-### Current implementation details
-
-The entry point for the adapter executable is created with `RCLCPP_COMPONENTS_REGISTER_NODE` the [autoware_auto_msgs_adapter_core.cpp](src/Fautoware_auto_msgs_adapter_core.cpp).
-
-This allows it to be launched as a component or as a standalone node.
-
-In the `AutowareAutoMsgsAdapterNode` constructor, the adapter is selected by the type string provided in the
-configuration file. The adapter is then initialized with the topic names provided.
-
-The constructors of the adapters are responsible for creating the publisher and subscriber (which makes use of the conversion method).
-
-### Adding a new message pair
-
-To add a new message pair,
-
-- Replicate and edit:
- - [adapter_control.hpp](include/autoware_auto_msgs_adapter/adapter_control.hpp).
- - Add the new header file to the [CMakeLists.txt](CMakeLists.txt).
-- Add a new entry to the returned map instance in the `AutowareAutoMsgsAdapterNode::create_adapter_map()` method of the adapter node:
- - [autoware_auto_msgs_adapter_core.cpp](src/autoware_auto_msgs_adapter_core.cpp)
-- Add a new entry to the [schema/autoware_auto_msgs_adapter.schema.json](schema/autoware_auto_msgs_adapter.schema.json) file in the `definitions:autoware_auto_msgs_adapter:properties:msg_type_target:enum` section.
- - Learn more about JSON schema usage in [here](https://autowarefoundation.github.io/autoware-documentation/main/contributing/coding-guidelines/ros-nodes/parameters/#json-schema).
-- Create a new config file by replicating and editing:
- - [autoware_auto_msgs_adapter_control.param.yaml](config/autoware_auto_msgs_adapter_control.param.yaml)
-- Add a new test file by replicating and editing:
- - [test_msg_ackermann_control_command.cpp](test/test_msg_ackermann_control_command.cpp)
- - No need to edit the `CMakeLists.txt` file as it will automatically detect the new test file.
-
-Also make sure to test the new adapter with:
-
-```bash
-colcon test --event-handlers console_cohesion+ --packages-select autoware_auto_msgs_adapter
-```
diff --git a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_control.param.yaml b/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_control.param.yaml
deleted file mode 100644
index 4c6d5f101f380..0000000000000
--- a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_control.param.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-/**:
- ros__parameters:
- msg_type_target: "autoware_auto_control_msgs/msg/AckermannControlCommand"
- topic_name_source: "/control/command/control_cmd"
- topic_name_target: "/control/command/control_cmd_auto"
diff --git a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_map.param.yaml b/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_map.param.yaml
deleted file mode 100644
index dcaa49e089b44..0000000000000
--- a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_map.param.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-/**:
- ros__parameters:
- msg_type_target: "autoware_auto_mapping_msgs/msg/HADMapBin"
- topic_name_source: "/map/vector_map"
- topic_name_target: "/map/vector_map_auto"
diff --git a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_perception.param.yaml b/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_perception.param.yaml
deleted file mode 100644
index d8b6e31543fad..0000000000000
--- a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_perception.param.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-/**:
- ros__parameters:
- msg_type_target: "autoware_auto_perception_msgs/msg/PredictedObjects"
- topic_name_source: "/perception/object_recognition/objects"
- topic_name_target: "/perception/object_recognition/objects_auto"
diff --git a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_planning.param.yaml b/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_planning.param.yaml
deleted file mode 100644
index b4a8712d4c505..0000000000000
--- a/system/autoware_auto_msgs_adapter/config/autoware_auto_msgs_adapter_planning.param.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-/**:
- ros__parameters:
- msg_type_target: "autoware_auto_planning_msgs/msg/Trajectory"
- topic_name_source: "/planning/scenario_planning/trajectory"
- topic_name_target: "/planning/scenario_planning/trajectory_auto"
diff --git a/system/autoware_auto_msgs_adapter/launch/autoware_auto_msgs_adapter.launch.xml b/system/autoware_auto_msgs_adapter/launch/autoware_auto_msgs_adapter.launch.xml
deleted file mode 100755
index 58f2fb4e06238..0000000000000
--- a/system/autoware_auto_msgs_adapter/launch/autoware_auto_msgs_adapter.launch.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/system/autoware_auto_msgs_adapter/package.xml b/system/autoware_auto_msgs_adapter/package.xml
deleted file mode 100644
index 2941820550ba0..0000000000000
--- a/system/autoware_auto_msgs_adapter/package.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-
-
-
- autoware_auto_msgs_adapter
- 1.0.0
- Converts an autoware_msgs message to autoware_auto_msgs version and publishes it.
-
- M. Fatih Cırıt
- Takagi, Isamu
-
- Apache License 2.0
-
- ament_cmake_auto
- autoware_cmake
-
- rosidl_default_generators
-
- ament_cmake_ros
- ament_lint_auto
- autoware_lint_common
-
- autoware_auto_control_msgs
- autoware_auto_mapping_msgs
- autoware_auto_perception_msgs
- autoware_auto_planning_msgs
- autoware_control_msgs
- autoware_map_msgs
- autoware_perception_msgs
- autoware_planning_msgs
- rclcpp
- rclcpp_components
-
-
- ament_cmake
-
-
diff --git a/system/autoware_auto_msgs_adapter/schema/autoware_auto_msgs_adapter.schema.json b/system/autoware_auto_msgs_adapter/schema/autoware_auto_msgs_adapter.schema.json
deleted file mode 100644
index a5d6c93029d09..0000000000000
--- a/system/autoware_auto_msgs_adapter/schema/autoware_auto_msgs_adapter.schema.json
+++ /dev/null
@@ -1,46 +0,0 @@
-{
- "$schema": "http://json-schema.org/draft-07/schema#",
- "title": "Parameters for autoware_auto_msg_adapter",
- "type": "object",
- "definitions": {
- "autoware_auto_msgs_adapter": {
- "type": "object",
- "properties": {
- "msg_type_target": {
- "type": "string",
- "description": "Target message type",
- "enum": [
- "autoware_auto_control_msgs/msg/AckermannControlCommand",
- "autoware_auto_mapping_msgs/msg/HADMapBin",
- "autoware_auto_perception_msgs/msg/PredictedObjects",
- "autoware_auto_planning_msgs/msg/Trajectory"
- ],
- "default": "autoware_auto_control_msgs/msg/AckermannControlCommand"
- },
- "topic_name_source": {
- "type": "string",
- "description": "Topic name of the message to be converted.",
- "default": "/control/command/control_cmd"
- },
- "topic_name_target": {
- "type": "string",
- "description": "Target topic name which the message will be converted into.",
- "default": "/control/command/control_cmd_auto"
- }
- },
- "required": ["msg_type_target", "topic_name_source", "topic_name_target"]
- }
- },
- "properties": {
- "/**": {
- "type": "object",
- "properties": {
- "ros__parameters": {
- "$ref": "#/definitions/autoware_auto_msgs_adapter"
- }
- },
- "required": ["ros__parameters"]
- }
- },
- "required": ["/**"]
-}
diff --git a/system/autoware_auto_msgs_adapter/src/autoware_auto_msgs_adapter_core.cpp b/system/autoware_auto_msgs_adapter/src/autoware_auto_msgs_adapter_core.cpp
deleted file mode 100644
index 6a23970246866..0000000000000
--- a/system/autoware_auto_msgs_adapter/src/autoware_auto_msgs_adapter_core.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright 2023 The Autoware Foundation
-//
-// 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
-//
-// http://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.
-
-#include "include/autoware_auto_msgs_adapter_core.hpp"
-
-#include "include/adapter_control.hpp"
-
-#include
-
-#include