diff --git a/app/components/molecules/AttractiveTextBox.tsx b/app/components/molecules/AttractiveTextBox.tsx
index 8b16aa2a..a80ad8c6 100644
--- a/app/components/molecules/AttractiveTextBox.tsx
+++ b/app/components/molecules/AttractiveTextBox.tsx
@@ -1,4 +1,10 @@
-import { type ChangeEventHandler, useCallback, useEffect, useRef } from "react";
+import {
+  type ChangeEventHandler,
+  useCallback,
+  useEffect,
+  useRef,
+  useState,
+} from "react";
 import { Input, type InputProps } from "../ui/input";
 
 type props = InputProps & {
@@ -8,22 +14,33 @@ type props = InputProps & {
 
 // focus が true のときにフォーカスを当てるテキストボックス
 const AttractiveTextBox = ({ focus, onTextSet, ...props }: props) => {
+  const [text, setText] = useState("");
   const DOMRef = useRef<HTMLInputElement>(null);
 
-  const handler: ChangeEventHandler<HTMLInputElement> = useCallback(
-    (event) => {
-      onTextSet(event.target.value);
-    },
-    [onTextSet],
+  const onChangeHandler: ChangeEventHandler<HTMLInputElement> = useCallback(
+    (event) => setText(event.target.value),
+    [],
   );
 
+  useEffect(() => {
+    onTextSet(text);
+  }, [text, onTextSet]);
+
   useEffect(() => {
     if (focus) {
       DOMRef.current?.focus();
     }
   }, [focus]);
 
-  return <Input onChange={handler} ref={DOMRef} {...props} />;
+  return (
+    <Input
+      value={text}
+      onChange={onChangeHandler}
+      ref={DOMRef}
+      disabled={!focus}
+      {...props}
+    />
+  );
 };
 
 export { AttractiveTextBox };
diff --git a/app/components/pages/CashierV2.tsx b/app/components/pages/CashierV2.tsx
index 7d40c6f0..166ca74a 100644
--- a/app/components/pages/CashierV2.tsx
+++ b/app/components/pages/CashierV2.tsx
@@ -90,8 +90,6 @@ const reducer = (state: OrderEntity, action: Action): OrderEntity => {
   switch (action.type) {
     case "clear":
       return OrderEntity.createNew({ orderId: state.orderId });
-    case "updateOrderId":
-      return updateOrderId(action.orderId);
     case "applyDiscount":
       return applyDiscount(action.discountOrder);
     case "removeDiscount":
@@ -104,6 +102,8 @@ const reducer = (state: OrderEntity, action: Action): OrderEntity => {
       return setReceived(action.received);
     case "setDescription":
       return setDescription(action.description);
+    case "updateOrderId":
+      return updateOrderId(action.orderId);
   }
 };
 
@@ -115,19 +115,22 @@ const latestOrderId = (orders: WithId<OrderEntity>[] | undefined): number => {
 };
 
 const CashierV2 = ({ items, orders, submitPayload }: props) => {
-  const nextOrderId = useMemo(() => latestOrderId(orders) + 1, [orders]);
   const [newOrder, dispatch] = useReducer(
     reducer,
-    OrderEntity.createNew({ orderId: nextOrderId }),
+    OrderEntity.createNew({ orderId: -1 }),
   );
   const [inputStatus, setInputStatus] =
     useState<(typeof InputStatus)[number]>("discount");
   const [dialogOpen, setDialogOpen] = useState(false);
 
+  const nextOrderId = useMemo(() => latestOrderId(orders) + 1, [orders]);
+  useEffect(() => {
+    dispatch({ type: "updateOrderId", orderId: nextOrderId });
+  }, [nextOrderId]);
+
   const charge = newOrder.received - newOrder.billingAmount;
   const chargeView: string | number = charge < 0 ? "不足しています" : charge;
 
-  const descriptionDOM = useRef<HTMLInputElement>(null);
   const discountInputDOM = useRef<HTMLInputElement>(null);
 
   const proceedStatus = useCallback(() => {
@@ -164,7 +167,6 @@ const CashierV2 = ({ items, orders, submitPayload }: props) => {
       case "received":
         break;
       case "description":
-        descriptionDOM.current?.focus();
         setDialogOpen(false);
         break;
       case "submit":
@@ -222,7 +224,7 @@ const CashierV2 = ({ items, orders, submitPayload }: props) => {
             <li>注文をクリア: Esc</li>
           </ul>
           <Button onClick={submitOrder}>提出</Button>
-          <h1 className="text-lg">{`No. ${nextOrderId}`}</h1>
+          <h1 className="text-lg">{`No. ${newOrder.orderId}`}</h1>
           <div className="border-8">
             <p>合計金額</p>
             <p>{newOrder.billingAmount}</p>