diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts b/M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts
index 809105b3..e68eac33 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Page.ts
@@ -20,6 +20,7 @@ export async function renderM02MasterTemplate(root: HTMLElement): Promise<void>
   const main = createMain(isAdmin);
   const side = buildSide({
     isAdmin,
+    userName: user?.name,
     onOpen: (sel) => void main.open(sel),
     getOpen: main.current,
   });
diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
index f2a5256b..41b38e3a 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Side.ts
@@ -78,6 +78,8 @@ const store = {
 
 export interface SideOptions {
   isAdmin: boolean;
+  /** 로그인한 사용자 이름 — 프로젝트 기본값(내가 만든 최근 것)에 씀 */
+  userName?: string;
   onOpen: (sel: Selection | null) => void;
   getOpen: () => Selection | null;
 }
@@ -126,7 +128,15 @@ export function buildSide(opt: SideOptions): SideHandle {
   const savedLayer = store.get(LAYER_KEY) as Layer;
   let layer: Layer = LAYERS.some((l) => l.layer === savedLayer) ? savedLayer : "project";
   if (layer === "system" && !opt.isAdmin) layer = "project";
-  let projectId = store.get(PROJECT_KEY);
+  // 마지막에 고른 프로젝트는 localStorage — 다시 들어와도 유지
+  const lastProject = (): string => {
+    try {
+      return window.localStorage.getItem(PROJECT_KEY) ?? "";
+    } catch {
+      return "";
+    }
+  };
+  let projectId = lastProject();
   let projects: ProjectItem[] = [];
   let items: TemplateInfo[] = [];
   let seq = 0;
@@ -147,10 +157,25 @@ export function buildSide(opt: SideOptions): SideHandle {
     children: layerButtons.map((b) => b.button),
   });
 
+  const remember = (id: string): void => {
+    try {
+      window.localStorage.setItem(PROJECT_KEY, id);
+    } catch {
+      // 저장소가 막혀도 화면은 동작
+    }
+  };
+  // 없으면 내가 만든 프로젝트 중 최근 것 · 그래도 없으면 빈 칸
+  const defaultProject = (): string => {
+    const mine = projects
+      .filter((p) => opt.userName && p.owner_name === opt.userName)
+      .sort((a, b) => (b.updated_at ?? "").localeCompare(a.updated_at ?? ""));
+    return mine[0] ? String(mine[0].id) : "";
+  };
+
   const projectField = createSelectField({ label: L("M02_Project"), options: [] });
   projectField.select.addEventListener("change", () => {
     projectId = projectField.select.value;
-    store.set(PROJECT_KEY, projectId);
+    remember(projectId);
     opt.onOpen(null);
     void refresh();
   });
@@ -234,16 +259,13 @@ export function buildSide(opt: SideOptions): SideHandle {
           showToast(L("M02_LoadFailed").replace("{value}", why(error)), "error");
         }
       }
-      if (!projects.some((p) => String(p.id) === projectId)) {
-        projectId = projects[0] ? String(projects[0].id) : "";
-      }
-      projectField.setOptions(
-        projects.length
-          ? projects.map((p) => ({ value: String(p.id), text: p.name ?? String(p.id) }))
-          : [{ value: "", text: L("M02_NoProjects") }],
-      );
+      if (!projects.some((p) => String(p.id) === projectId)) projectId = defaultProject();
+      projectField.setOptions([
+        { value: "", text: L(projects.length ? "M02_PickProject" : "M02_NoProjects") },
+        ...projects.map((p) => ({ value: String(p.id), text: p.name ?? String(p.id) })),
+      ]);
       projectField.select.value = projectId;
-      store.set(PROJECT_KEY, projectId);
+      remember(projectId);
     }
     try {
       items = isProject() && !projectId ? [] : await listTemplates(layer, pid());
diff --git a/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css b/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
index 0ce4d0f6..8e8e8284 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
+++ b/M02_MasterTemplete/M02_MasterTemplete_UI_Style.css
@@ -8,13 +8,19 @@
 
 .m02-side__layers {
   display: grid;
-  grid-template-columns: repeat(4, 1fr);
+  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
   gap: var(--spacing-4);
 }
 
+.m02-side__layers .ui-btn {
+  padding-inline: var(--spacing-4);
+  white-space: nowrap;
+}
+
 .m02-side__layers .ui-btn.is-active {
+  background: var(--color-accent);
   border-color: var(--color-accent);
-  color: var(--color-accent);
+  color: var(--color-on-accent, #fff);
   font-weight: var(--font-weight-bold);
 }