diff --git a/.gitea/workflows/backup.yml b/.gitea/workflows/backup.yml
index f1e2d4d..e6f618b 100644
--- a/.gitea/workflows/backup.yml
+++ b/.gitea/workflows/backup.yml
@@ -8,7 +8,7 @@ on:
         required: false
         default: ''
   schedule:
-    - cron: '0 17 * * *' # UTC 17:00 == KST 02:00
+    - cron: '0 17 * * 1-5' # UTC 17:00 == KST 02:00, Mon-Fri only
 
 jobs:
   backup:
@@ -57,8 +57,6 @@ jobs:
             echo "::warning::TARGET_SEED_DEPTH(${TARGET_SEED_DEPTH}) is invalid; resetting to 50"
             TARGET_SEED_DEPTH=50
           fi
-          CACHE_BASE="${ROOT_DIR}/.cache_sources"
-          mkdir -p "${CACHE_BASE}"
           TOTAL_SUCCESS=0
           TOTAL_SKIP=0
           TOTAL_ERROR=0
@@ -247,48 +245,13 @@ jobs:
             exit 1
           fi
 
-          prepare_cache() {
-            local source_repo="$1" cache_dir="${CACHE_BASE}/${source_repo//\//_}.git"
-            if [[ ! -d "${cache_dir}" ]]; then
-              echo "Initializing local cache for ${source_repo} at ${cache_dir}"
-              if ! git clone --mirror "${SOURCE_SSH_HOST}:${source_repo}" "${cache_dir}"; then
-                echo "::warning::Failed to clone cache for ${source_repo} (${SOURCE_SSH_HOST}:${source_repo})"
-                return 1
-              fi
-            else
-              echo "Refreshing cache for ${source_repo}"
-              if ! git -C "${cache_dir}" fetch --prune --prune-tags origin "+refs/*:refs/*"; then
-                echo "::warning::Failed to refresh cache for ${source_repo} (${SOURCE_SSH_HOST}:${source_repo})"
-                return 1
-              fi
-            fi
-            SOURCE_CACHE_PATH["${source_repo}"]="${cache_dir}"
-          }
-
-          echo "Preparing per-source caches..."
-          for source_repo in "${!SOURCE_REPOS[@]}"; do
-            prepare_cache "${source_repo}" || echo "::warning::Cache unavailable for ${source_repo}; will fallback to direct fetch"
-          done
-
           echo "Step 1) 소스 브랜치 해시 스캔"
           for source_repo in "${!SOURCE_REPOS[@]}"; do
-            cache_dir="${SOURCE_CACHE_PATH[${source_repo}]:-}"
             source_repo_url="${SOURCE_SSH_HOST}:${source_repo}"
-            if [[ -n "${cache_dir}" && -d "${cache_dir}" ]]; then
-              echo " - using cache: ${cache_dir}"
-              if ! remote_output=$(git -C "${cache_dir}" for-each-ref --format='%(objectname)\t%(refname)' 'refs/heads/*'); then
-                echo "::warning::Failed to read heads from cache ${cache_dir}; falling back to remote ${source_repo_url}."
-                remote_output=$(git ls-remote --heads "${source_repo_url}") || {
-                  echo "::warning::Failed to ls-remote ${source_repo_url}. Entries for this repo may fail."
-                  continue
-                }
-              fi
-            else
-              echo " - ${source_repo_url}"
-              if ! remote_output=$(git ls-remote --heads "${source_repo_url}"); then
-                echo "::warning::Failed to ls-remote ${source_repo_url}. Entries for this repo may fail."
-                continue
-              fi
+            echo " - ${source_repo_url}"
+            if ! remote_output=$(git ls-remote --heads "${source_repo_url}"); then
+              echo "::warning::Failed to ls-remote ${source_repo_url}. Entries for this repo may fail."
+              continue
             fi
             if [[ -z "${remote_output}" ]]; then
               echo "::warning::No branches found for ${source_repo_url}"
@@ -449,9 +412,9 @@ jobs:
 
             CLONE_DIR=$(mktemp -d)
             echo "Working directory: ${CLONE_DIR}"
+            SOURCE_FETCH_REMOTE="${SOURCE_SSH_HOST}:${source_repo}"
             if ${just_created}; then
               echo "Target repo newly created; cloning source branch for initial push..."
-              SOURCE_FETCH_REMOTE="${SOURCE_CACHE_PATH[${source_repo}]:-${SOURCE_SSH_HOST}:${source_repo}}"
               if ! git clone --bare --no-tags --single-branch --branch "${branch_name}" "${SOURCE_FETCH_REMOTE}" "${CLONE_DIR}"; then
                 echo "::error::Failed to clone source repository ${SOURCE_FETCH_REMOTE}"
                 notify_status "error" "${repo_name}" "${branch_name}" "${backup_mode}" "${start_epoch}" "source clone 실패" "${heads_detail}"
@@ -475,7 +438,6 @@ jobs:
                 continue
               fi
               git remote add origin "${GITEA_REMOTE}"
-              SOURCE_FETCH_REMOTE="${SOURCE_CACHE_PATH[${source_repo}]:-${SOURCE_SSH_HOST}:${source_repo}}"
               git remote add source "${SOURCE_FETCH_REMOTE}"
             fi