diff --git a/2025/argo-cd/jiwlee97/Chart.yaml b/2025/argo-cd/jiwlee97/Chart.yaml
new file mode 100644
index 0000000..7482006
--- /dev/null
+++ b/2025/argo-cd/jiwlee97/Chart.yaml
@@ -0,0 +1,24 @@
+apiVersion: v2
+name: guestbook
+description: ArgoCD AppProject and Application for Guestbook
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: '1.0'
diff --git a/2025/argo-cd/jiwlee97/templates/application.yaml b/2025/argo-cd/jiwlee97/templates/application.yaml
new file mode 100644
index 0000000..6dc9ccf
--- /dev/null
+++ b/2025/argo-cd/jiwlee97/templates/application.yaml
@@ -0,0 +1,27 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: {{ .Values.application.metadata.name }}
+  namespace: {{ .Values.application.metadata.namespace }}
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: guestbook-project
+
+  source:
+    repoURL: https://github.com/argoproj/argocd-example-apps.git
+    targetRevision: HEAD
+    path: helm-guestbook
+
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: {{ .Values.application.spec.destination.namespace }}
+
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+
+  revisionHistoryLimit: 10
diff --git a/2025/argo-cd/jiwlee97/templates/project.yaml b/2025/argo-cd/jiwlee97/templates/project.yaml
new file mode 100644
index 0000000..c3e7427
--- /dev/null
+++ b/2025/argo-cd/jiwlee97/templates/project.yaml
@@ -0,0 +1,46 @@
+apiVersion: argoproj.io/v1alpha1
+kind: AppProject
+metadata:
+  name: guestbook-project
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  description: Guestbook Project
+
+  sourceRepos:
+  {{- range $r := .Values.project.sourceRepos }}
+    - {{ required "project.sourceRepos[] is required" $r }}
+  {{- end }}
+
+  destinations:
+  {{- range $d := .Values.project.destinations }}
+    - namespace: {{ required "project.destinations[].namespace is required" $d.namespace }}
+      server: {{ required "project.destinations[].server is required" $d.server }}
+  {{- end }}
+
+  clusterResourceWhitelist:
+    - group: ''
+      kind: Namespace
+
+  namespaceResourceBlacklist:
+    - group: ''
+      kind: ResourceQuota
+    - group: ''
+      kind: LimitRange
+    - group: ''
+      kind: NetworkPolicy
+
+  namespaceResourceWhitelist:
+    - group: 'apps'
+      kind: Deployment
+    - group: ''
+      kind: Service
+
+  orphanedResources:
+    warn: true
+
+  permitOnlyProjectScopedClusters: false
+
+  sourceNamespaces:
+    - 'guestbook'
diff --git a/2025/argo-cd/jiwlee97/values.yaml b/2025/argo-cd/jiwlee97/values.yaml
new file mode 100644
index 0000000..3b1187f
--- /dev/null
+++ b/2025/argo-cd/jiwlee97/values.yaml
@@ -0,0 +1,14 @@
+project:
+  sourceRepos:
+    - https://github.com/argoproj/argocd-example-apps.git
+  destinations:
+    - namespace: guestbook
+      server: https://kubernetes.default.svc
+
+application:
+  metadata:
+    name: guestbook
+    namespace: argocd
+  spec:
+    destination:
+      namespace: guestbook