diff --git a/README.md b/README.md
index 6c651d8..5dcef6e 100644
--- a/README.md
+++ b/README.md
@@ -55,8 +55,8 @@ export const prisma = new PrismaClient();
 // ./src/user.ts
 import { prisma } from "./client";
 
-export function createUser(email: string) {
-  return prisma.user.create({ ... });
+export function createUser(data: { name: string }) {
+  return prisma.user.create({ data });
 }
 ```
 
@@ -119,7 +119,7 @@ describe("user", () => {
   it("should create a new user", async () => {
     // this record will delete by prisma-cleaner in afterEach defined by setup.ts
     const created = await createUser("xxx");
-    expect(created.email).toEqual("xxx");
+    expect(created.name).toEqual("xxx");
     expect(await prisma.user.count()).toEqual(1);
   });
 
@@ -135,7 +135,7 @@ describe("user", () => {
 Prisma-cleaner adds tables targeted for deletion triggered by the execution of Prisma's `create`, `createMany`, `upsert`. If added via `$executeRaw` or similar, they will not be automatically deleted, so you will need to manually delete them.
 
 ```typescript
-await prisma.$executeRaw`INSERT INTO "User" (email) VALUES ('xxx')`;
+await prisma.$executeRaw`INSERT INTO "User" (name) VALUES ('xxx')`;
 
 // You should delete manually.
 await cleaner.cleanupTables(["User"]);
diff --git a/example/with-fabbrica/package.json b/example/with-fabbrica/package.json
index e5f7015..69e261c 100644
--- a/example/with-fabbrica/package.json
+++ b/example/with-fabbrica/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "with-jest-example",
+  "name": "with-fabbrica-example",
   "private": true,
   "scripts": {
     "generate": "prisma generate",
diff --git a/example/with-fabbrica/prisma/schema.prisma b/example/with-fabbrica/prisma/schema.prisma
index ad58553..8cc2c58 100644
--- a/example/with-fabbrica/prisma/schema.prisma
+++ b/example/with-fabbrica/prisma/schema.prisma
@@ -12,17 +12,15 @@ generator fabbrica {
 }
 
 model User {
-  id    Int     @id @default(autoincrement())
-  email String  @unique
-  name  String?
+  id    Int    @id @default(autoincrement())
+  name  String
   posts Post[]
 }
 
 model Post {
-  id        Int     @id @default(autoincrement())
-  title     String
-  content   String?
-  published Boolean @default(false)
-  author    User    @relation(fields: [authorId], references: [id])
-  authorId  Int
+  id      Int    @id @default(autoincrement())
+  title   String
+  content String
+  User    User?  @relation(fields: [userId], references: [id])
+  userId  Int?
 }
diff --git a/example/with-fabbrica/src/user.test.ts b/example/with-fabbrica/src/user.test.ts
index 1196d7b..9417ef9 100644
--- a/example/with-fabbrica/src/user.test.ts
+++ b/example/with-fabbrica/src/user.test.ts
@@ -8,10 +8,9 @@ describe("user", () => {
   it("should create a new user", async () => {
     // this record will delete by prisma-cleaner in afterEach defined by setup.ts
     const created = await createUser("xxx");
-    expect(created.email).toEqual("xxx");
+    expect(created.name).toEqual("xxx");
 
-    const user = await UserFactory.create();
-    expect(user).toBeDefined();
+    await UserFactory.create();
 
     expect(await prisma.user.count()).toEqual(2);
   });
diff --git a/example/with-fabbrica/src/user.ts b/example/with-fabbrica/src/user.ts
index bdb32e3..8dff16b 100644
--- a/example/with-fabbrica/src/user.ts
+++ b/example/with-fabbrica/src/user.ts
@@ -1,10 +1,8 @@
 import { prisma } from "./client";
 
-export function createUser(email: string) {
+export function createUser(name: string) {
   return prisma.user.create({
-    data: {
-      email,
-    },
+    data: { name },
   });
 }
 
diff --git a/example/with-jest/prisma/schema.prisma b/example/with-jest/prisma/schema.prisma
index 7ee0523..8f8cc17 100644
--- a/example/with-jest/prisma/schema.prisma
+++ b/example/with-jest/prisma/schema.prisma
@@ -8,17 +8,15 @@ datasource db {
 }
 
 model User {
-  id    Int     @id @default(autoincrement())
-  email String  @unique
-  name  String?
+  id    Int    @id @default(autoincrement())
+  name  String
   posts Post[]
 }
 
 model Post {
-  id        Int     @id @default(autoincrement())
-  title     String
-  content   String?
-  published Boolean @default(false)
-  author    User    @relation(fields: [authorId], references: [id])
-  authorId  Int
+  id      Int    @id @default(autoincrement())
+  title   String
+  content String
+  User    User?  @relation(fields: [userId], references: [id])
+  userId  Int?
 }
diff --git a/example/with-jest/src/user.test.ts b/example/with-jest/src/user.test.ts
index 8eabd28..c70dd3d 100644
--- a/example/with-jest/src/user.test.ts
+++ b/example/with-jest/src/user.test.ts
@@ -5,7 +5,7 @@ describe("user", () => {
   it("should create a new user", async () => {
     // this record will delete by prisma-cleaner in afterEach defined by setup.ts
     const created = await createUser("xxx");
-    expect(created.email).toEqual("xxx");
+    expect(created.name).toEqual("xxx");
     expect(await prisma.user.count()).toEqual(1);
   });
 
diff --git a/example/with-jest/src/user.ts b/example/with-jest/src/user.ts
index bdb32e3..8dff16b 100644
--- a/example/with-jest/src/user.ts
+++ b/example/with-jest/src/user.ts
@@ -1,10 +1,8 @@
 import { prisma } from "./client";
 
-export function createUser(email: string) {
+export function createUser(name: string) {
   return prisma.user.create({
-    data: {
-      email,
-    },
+    data: { name },
   });
 }
 
diff --git a/example/with-vitest/prisma/schema.prisma b/example/with-vitest/prisma/schema.prisma
index 7ee0523..8f8cc17 100644
--- a/example/with-vitest/prisma/schema.prisma
+++ b/example/with-vitest/prisma/schema.prisma
@@ -8,17 +8,15 @@ datasource db {
 }
 
 model User {
-  id    Int     @id @default(autoincrement())
-  email String  @unique
-  name  String?
+  id    Int    @id @default(autoincrement())
+  name  String
   posts Post[]
 }
 
 model Post {
-  id        Int     @id @default(autoincrement())
-  title     String
-  content   String?
-  published Boolean @default(false)
-  author    User    @relation(fields: [authorId], references: [id])
-  authorId  Int
+  id      Int    @id @default(autoincrement())
+  title   String
+  content String
+  User    User?  @relation(fields: [userId], references: [id])
+  userId  Int?
 }
diff --git a/example/with-vitest/src/user.test.ts b/example/with-vitest/src/user.test.ts
index 03fbbd3..a654f52 100644
--- a/example/with-vitest/src/user.test.ts
+++ b/example/with-vitest/src/user.test.ts
@@ -6,7 +6,7 @@ describe("user", () => {
   it("should create a new user", async () => {
     // this record will delete by prisma-cleaner in afterEach defined by setup.ts
     const created = await createUser("xxx");
-    expect(created.email).toEqual("xxx");
+    expect(created.name).toEqual("xxx");
     expect(await prisma.user.count()).toEqual(1);
   });
 
diff --git a/example/with-vitest/src/user.ts b/example/with-vitest/src/user.ts
index bdb32e3..8dff16b 100644
--- a/example/with-vitest/src/user.ts
+++ b/example/with-vitest/src/user.ts
@@ -1,10 +1,8 @@
 import { prisma } from "./client";
 
-export function createUser(email: string) {
+export function createUser(name: string) {
   return prisma.user.create({
-    data: {
-      email,
-    },
+    data: { name },
   });
 }
 
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 7ee0523..8f8cc17 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -8,17 +8,15 @@ datasource db {
 }
 
 model User {
-  id    Int     @id @default(autoincrement())
-  email String  @unique
-  name  String?
+  id    Int    @id @default(autoincrement())
+  name  String
   posts Post[]
 }
 
 model Post {
-  id        Int     @id @default(autoincrement())
-  title     String
-  content   String?
-  published Boolean @default(false)
-  author    User    @relation(fields: [authorId], references: [id])
-  authorId  Int
+  id      Int    @id @default(autoincrement())
+  title   String
+  content String
+  User    User?  @relation(fields: [userId], references: [id])
+  userId  Int?
 }
diff --git a/test/cleaner.test.ts b/test/cleaner.test.ts
index 80dff09..298db49 100644
--- a/test/cleaner.test.ts
+++ b/test/cleaner.test.ts
@@ -16,7 +16,7 @@ describe("PrismaCleaner", () => {
   test("cleanup user table", async () => {
     await prisma.user.create({
       data: {
-        email: "xxx",
+        name: "xxx",
       },
     });
     expect(await prisma.user.count()).toBe(1);
@@ -27,7 +27,7 @@ describe("PrismaCleaner", () => {
 
   test("manually cleanup", async () => {
     const insert = () =>
-      prisma.$executeRaw`insert into "User" (email) values ('xxx')`;
+      prisma.$executeRaw`insert into "User" (name) values ('xxx')`;
 
     await insert();
     expect(await prisma.user.count()).toBe(1);