diff --git a/packages/react/components/Toast.tsx b/packages/react/components/Toast.tsx
new file mode 100644
index 0000000..8db53f6
--- /dev/null
+++ b/packages/react/components/Toast.tsx
@@ -0,0 +1,272 @@
+import React, { useEffect } from "react";
+import ReactDOM from "react-dom";
+import { VariantProps, vcn } from "../shared";
+
+interface ToastOption {
+  closeButton: boolean;
+  closeTimeout: number | null;
+}
+
+const defaultToastOption: ToastOption = {
+  closeButton: true,
+  closeTimeout: 3000,
+};
+
+const [toastVariant] = vcn({
+  base: "flex flex-col gap-2 border p-4 rounded-lg pr-8 pointer-events-auto bg-white dark:bg-black relative transition-all duration-150",
+  variants: {
+    status: {
+      default: "border-black/10 dark:border-white/20",
+      error: "border-red-500/50",
+      success: "border-green-500/50",
+      warning: "border-yellow-500/50",
+      loading: "border-black/50 dark:border-white/50 animate-pulse",
+    },
+    life: {
+      born: "translate-y-1/2 scale-50",
+      normal: "translate-y-0 scale-100 ease-out",
+      dead: "translate-y-1/2 scale-50 ease-in",
+    },
+  },
+  defaults: {
+    status: "default",
+    life: "born",
+  },
+});
+
+interface ToastBody extends Omit<VariantProps<typeof toastVariant>, "preset"> {
+  title: string;
+  description: string;
+}
+
+let index = 0;
+let toasts: Record<
+  `${number}`,
+  ToastBody &
+    Partial<ToastOption> & { subscribers: (() => void)[]; version: number }
+> = {};
+let subscribers: (() => void)[] = [];
+
+/**
+ * ====
+ * Controls
+ * ====
+ */
+
+function subscribe(callback: () => void) {
+  subscribers.push(callback);
+  return () => {
+    subscribers = subscribers.filter((subscriber) => subscriber !== callback);
+  };
+}
+
+function getSnapshot() {
+  return { ...toasts };
+}
+
+function subscribeSingle(id: `${number}`) {
+  return (callback: () => void) => {
+    toasts[id].subscribers.push(callback);
+    return () => {
+      toasts[id].subscribers = toasts[id].subscribers.filter(
+        (subscriber) => subscriber !== callback
+      );
+    };
+  };
+}
+
+function getSingleSnapshot(id: `${number}`) {
+  return () => {
+    return {
+      ...toasts[id],
+    };
+  };
+}
+
+function notify() {
+  subscribers.forEach((subscriber) => subscriber());
+}
+
+function notifySingle(id: `${number}`) {
+  toasts[id].subscribers.forEach((subscriber) => subscriber());
+}
+
+function close(id: `${number}`) {
+  toasts[id] = {
+    ...toasts[id],
+    life: "dead",
+    version: toasts[id].version + 1,
+  };
+  notifySingle(id);
+}
+
+function update(
+  id: `${number}`,
+  toast: Partial<Omit<ToastBody, "life"> & Partial<ToastOption>>
+) {
+  toasts[id] = {
+    ...toasts[id],
+    ...toast,
+    version: toasts[id].version + 1,
+  };
+  notifySingle(id);
+}
+
+function addToast(toast: Omit<ToastBody, "life"> & Partial<ToastOption>) {
+  const id: `${number}` = `${index}`;
+  toasts[id] = {
+    ...toast,
+    subscribers: [],
+    life: "born",
+    version: 0,
+  };
+  index += 1;
+  notify();
+
+  return {
+    update: (toast: Partial<Omit<ToastBody, "life"> & Partial<ToastOption>>) =>
+      update(id, toast),
+    close: () => close(id),
+  };
+}
+
+function useToast() {
+  return {
+    toast: addToast,
+    update,
+    close,
+  };
+}
+
+const ToastTemplate = ({
+  id,
+  globalOption,
+}: {
+  id: `${number}`;
+  globalOption: ToastOption;
+}) => {
+  const [toast, setToast] = React.useState<(typeof toasts)[`${number}`]>(
+    toasts[id]
+  );
+  const ref = React.useRef<HTMLDivElement | null>(null);
+
+  useEffect(() => {
+    subscribeSingle(id)(() => {
+      setToast(getSingleSnapshot(id)());
+    });
+  }, []);
+
+  const toastData = {
+    ...globalOption,
+    ...toast,
+  };
+
+  React.useEffect(() => {
+    if (toastData.life === "born") {
+      toasts[id] = {
+        ...toasts[id],
+        life: "normal",
+        version: toasts[id].version + 1,
+      };
+      notifySingle(id);
+    }
+    if (toastData.life === "normal" && toastData.closeTimeout !== null) {
+      const timeout = setTimeout(() => {
+        close(id);
+      }, toastData.closeTimeout);
+      return () => clearTimeout(timeout);
+    }
+    if (toastData.life === "dead") {
+      const transitionDuration = ref.current
+        ?.computedStyleMap()
+        ?.get("transition-duration") as {
+        value: number;
+        unit: string;
+      };
+      if (!transitionDuration) {
+        delete toasts[id];
+        notify();
+        return;
+      }
+      const calculatedTransitionDuration =
+        transitionDuration.value *
+        ({
+          s: 1000,
+          ms: 1,
+        }[transitionDuration.unit] ?? 1);
+      setTimeout(() => {
+        delete toasts[id];
+        notify();
+      }, calculatedTransitionDuration);
+    }
+  }, [toastData.version]);
+
+  return (
+    <div
+      className={toastVariant({
+        status: toastData.status,
+        life: toastData.life,
+      })}
+      ref={ref}
+    >
+      {toastData.closeButton && (
+        <button className="absolute top-2 right-2" onClick={() => close(id)}>
+          <svg
+            xmlns="http://www.w3.org/2000/svg"
+            width="1.2rem"
+            height="1.2rem"
+            viewBox="0 0 24 24"
+          >
+            <path
+              fill="currentColor"
+              d="M19 6.41L17.59 5L12 10.59L6.41 5L5 6.41L10.59 12L5 17.59L6.41 19L12 13.41L17.59 19L19 17.59L13.41 12z"
+            />
+          </svg>
+        </button>
+      )}
+      <div className="text-sm font-bold">{toastData.title}</div>
+      <div className="text-sm">{toastData.description}</div>
+    </div>
+  );
+};
+
+const Toaster = ({
+  defaultOption,
+}: {
+  defaultOption?: Partial<ToastOption>;
+}) => {
+  const [toastList, setToastList] = React.useState<typeof toasts>(toasts);
+
+  useEffect(() => {
+    const unsubscribe = subscribe(() => {
+      setToastList(getSnapshot());
+    });
+    return unsubscribe;
+  }, []);
+
+  const option = React.useMemo(() => {
+    return {
+      ...defaultToastOption,
+      ...defaultOption,
+    };
+  }, [defaultOption]);
+
+  return (
+    <>
+      {ReactDOM.createPortal(
+        <div className="fixed p-4 flex flex-col gap-4 top-0 right-0 w-full md:max-w-md md:bottom-0 md:top-auto pointer-events-none z-40">
+          {Object.entries(toastList).map(([id]) => (
+            <ToastTemplate
+              key={id}
+              id={id as `${number}`}
+              globalOption={option}
+            />
+          ))}
+        </div>,
+        document.body
+      )}
+    </>
+  );
+};
+
+export { Toaster, useToast };
diff --git a/packages/react/stories/Toast.stories.tsx b/packages/react/stories/Toast.stories.tsx
new file mode 100644
index 0000000..601692f
--- /dev/null
+++ b/packages/react/stories/Toast.stories.tsx
@@ -0,0 +1,113 @@
+import { Button } from "../components/Button";
+import { Toaster, useToast } from "../components/Toast";
+
+export default {
+  title: "React/Toast",
+  tags: ["!autodocs"],
+  decorators: [
+    (Story: any) => (
+      <>
+        <Toaster />
+        {Story()}
+      </>
+    ),
+  ],
+};
+
+export const Default = () => {
+  const { toast } = useToast();
+
+  return (
+    <>
+      <Button
+        preset="default"
+        onClick={() => {
+          toast({
+            title: "Toast Title Lorem loremLorem loremLorem loremLorem lorem",
+            description:
+              "Toast DescriptionLorem loremLorem loremLorem loremLorem lorem",
+          });
+        }}
+      >
+        Toast!
+      </Button>
+    </>
+  );
+};
+
+const fetchAndWaitForSuccess = (): Promise<string> => {
+  return new Promise((resolve) =>
+    setTimeout(() => resolve("LoremSuccess"), 3000)
+  );
+};
+const fetchAndWaitForError = (): Promise<string> => {
+  return new Promise((_, reject) =>
+    setTimeout(() => reject("LoremError"), 3000)
+  );
+};
+
+export const PromiseWaitSuccess = () => {
+  const { toast } = useToast();
+
+  return (
+    <>
+      <Button
+        preset="default"
+        onClick={async () => {
+          const { update } = toast({
+            title: "Loading...",
+            description: "Loading data... Please wait.",
+            status: "loading",
+            closeButton: false,
+            closeTimeout: null,
+          });
+          const result = await fetchAndWaitForSuccess();
+          update({
+            title: "Successfully Fetched",
+            description: `Data loaded successfully: ${result}`,
+            status: "success",
+            closeButton: true,
+            closeTimeout: 3000,
+          });
+        }}
+      >
+        Toast!
+      </Button>
+    </>
+  );
+};
+
+export const PromiseWaitError = () => {
+  const { toast } = useToast();
+
+  return (
+    <>
+      <Button
+        preset="default"
+        onClick={async () => {
+          const { update } = toast({
+            title: "Loading...",
+            description: "Loading data... Please wait.",
+            status: "loading",
+            closeButton: false,
+            closeTimeout: null,
+          });
+          try {
+            const result = await fetchAndWaitForError();
+            console.log(result);
+          } catch (error) {
+            update({
+              title: "Failed to fetch",
+              description: `Error: ${error}`,
+              status: "error",
+              closeButton: true,
+              closeTimeout: 3000,
+            });
+          }
+        }}
+      >
+        Toast!
+      </Button>
+    </>
+  );
+};