diff --git a/tasks/stage/ap.py b/tasks/stage/ap.py
new file mode 100644
index 0000000..e63a97f
--- /dev/null
+++ b/tasks/stage/ap.py
@@ -0,0 +1,48 @@
+from module.base.base import ModuleBase
+from module.logger import logger
+
+
+class AP(ModuleBase):
+    _stage = 0
+
+    @property
+    def stage(self) -> int:
+        return self._stage
+
+    @classmethod
+    def set_stage(cls, stage: int):
+        cls._stage = stage
+
+    @property
+    def stage_ap(self) -> int | list:
+        """
+        To be redefined in subclass.
+
+        Returns:
+            Task ap
+        """
+        return 0
+
+    @property
+    def current_ap(self):
+        return self.config.stored.AP.value
+
+    def update_ap(self, count: int, stage: int = None):
+        ap = self.config.stored.AP
+        ap_old = ap.value
+        ap_new = ap_old - self.stage_ap_cost(stage) * count
+        ap.set(ap_new, ap.total)
+        logger.info(f'Set AP: {ap_old} -> {ap_new}')
+
+    def stage_ap_cost(self, stage: int = None) -> int:
+        if isinstance(self.stage_ap, int):
+            return self.stage_ap
+        if isinstance(self.stage_ap, list):
+            if not stage:
+                stage = self.stage if self.stage else len(self.stage_ap)
+            return self.stage_ap[stage - 1]
+
+    def is_ap_enough(self, count: int, stage: int = None) -> bool:
+        cost = self.stage_ap_cost(stage) * count
+        logger.info(f'Check AP: {self.current_ap} / {cost}')
+        return self.current_ap >= cost