diff --git a/kadai3-1/nas/simpletype/Makefile b/kadai3-1/nas/simpletype/Makefile
new file mode 100644
index 0000000..26017d0
--- /dev/null
+++ b/kadai3-1/nas/simpletype/Makefile
@@ -0,0 +1,38 @@
+# CONST
+BINARYNAME=simpletype
+
+export GO111MODULE=on
+
+# command
+.PHONY: help
+help:
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+.PHONY: build
+build: ## go build
+	go build -v -o ${BINARYNAME}
+
+#.PHONY: test
+#test: ## go test
+#	go test -v -cover ./pkg/${BINARYNAME}
+
+.PHONY: clean
+clean: ## go clean
+	go clean -cache -testcache
+
+.PHONY: analyze
+analyze: ## do static code analysis
+	goimports -l -w .
+	go vet ./...
+	golint ./...
+
+.PHONY: test
+test: ## go test ...
+	go test ./...
+
+.PHONY: remove
+remove: ## remove binary and test output data
+	rm -f ./${BINARYNAME}
+
+.PHONY: all
+all: remove clean test analyze build ## run 'build' with 'remove', 'clean', 'test' and 'analyze'
diff --git a/kadai3-1/nas/simpletype/cli.go b/kadai3-1/nas/simpletype/cli.go
new file mode 100644
index 0000000..fd64e80
--- /dev/null
+++ b/kadai3-1/nas/simpletype/cli.go
@@ -0,0 +1,70 @@
+package main
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/gopherdojo/dojo7/kadai3-1/nas/simpletype/pkg/exercise"
+)
+
+// Cli は command line tool 用の 情報を保持します。
+type Cli struct {
+	InputReader
+	Correct int
+}
+
+// InputReader は 入出デバイス用インターフェイス
+type InputReader interface {
+	Answer() <-chan string
+}
+
+// Reader は 標準入力です。
+type Reader struct{}
+
+// Answer は  標準入力を受け取り、それらをチャンネルとして返します。
+func (r *Reader) Answer() <-chan string {
+	ch := make(chan string)
+
+	go func() {
+		s := bufio.NewScanner(os.Stdin)
+		for s.Scan() {
+			ch <- s.Text()
+		}
+		close(ch)
+	}()
+	return ch
+}
+
+// Run はタイピングゲームを実行します。
+func (c *Cli) Run(e *exercise.Exercise, t time.Duration) {
+	bc := context.Background()
+	ctx, cancel := context.WithTimeout(bc, t)
+	defer cancel()
+	if !e.Next() {
+		fmt.Fprintf(os.Stderr, "問題がありません\n")
+		return
+	}
+	answer := c.InputReader.Answer()
+	for {
+		q := e.Get()
+		if q != "" {
+			fmt.Printf("%s > ", q)
+		}
+		select {
+		case <-ctx.Done():
+			fmt.Fprintf(os.Stdout, "\n終了 : 正解数 >>  %d\n", c.Correct)
+			return
+		case a := <-answer:
+			if a != q {
+				continue
+			}
+			c.Correct++
+			if !e.Next() {
+				cancel()
+			}
+		}
+	}
+}
diff --git a/kadai3-1/nas/simpletype/cli_test.go b/kadai3-1/nas/simpletype/cli_test.go
new file mode 100644
index 0000000..1e3aae3
--- /dev/null
+++ b/kadai3-1/nas/simpletype/cli_test.go
@@ -0,0 +1,53 @@
+package main
+
+import (
+	"testing"
+	"time"
+
+	"github.com/gopherdojo/dojo7/kadai3-1/nas/simpletype/pkg/exercise"
+)
+
+type MockReader struct {
+	Words []string
+}
+
+func (mr *MockReader) Answer() <-chan string {
+	ch := make(chan string)
+
+	go func() {
+		for _, w := range mr.Words {
+			ch <- w
+			time.Sleep(1 * time.Second)
+		}
+		close(ch)
+	}()
+	return ch
+}
+
+func TestCliRun(t *testing.T) {
+	cases := []struct {
+		name     string
+		duration int
+		words    []string
+		want     int
+	}{
+		{"Success", 10, []string{"apple", "banana", "cat", "dog", "egg", "fish"}, 6},
+		{"Time out", 3, []string{"apple", "banana", "cat", "dog", "egg", "fish"}, 3},
+		{"No Exercise", 10, []string{}, 0},
+	}
+
+	for _, tt := range cases {
+		t.Run(tt.name, func(t *testing.T) {
+			e := &exercise.Exercise{
+				Questions: tt.words,
+			}
+			d := time.Duration(tt.duration) * time.Second
+			c := &Cli{InputReader: &MockReader{tt.words}}
+			c.Run(e, d)
+			if got := c.Correct; tt.want != got {
+				t.Errorf("c.Run(%v, %v) >> c.Count => %d, but want %d", e, d, tt.want, c.Correct)
+			}
+		})
+
+	}
+}
diff --git a/kadai3-1/nas/simpletype/go.mod b/kadai3-1/nas/simpletype/go.mod
new file mode 100644
index 0000000..a9f4cd1
--- /dev/null
+++ b/kadai3-1/nas/simpletype/go.mod
@@ -0,0 +1,3 @@
+module github.com/gopherdojo/dojo7/kadai3-1/nas/simpletype
+
+go 1.13
diff --git a/kadai3-1/nas/simpletype/main.go b/kadai3-1/nas/simpletype/main.go
new file mode 100644
index 0000000..d983a2c
--- /dev/null
+++ b/kadai3-1/nas/simpletype/main.go
@@ -0,0 +1,16 @@
+package main
+
+import (
+	"time"
+
+	"github.com/gopherdojo/dojo7/kadai3-1/nas/simpletype/pkg/exercise"
+)
+
+func main() {
+	e := &exercise.Exercise{
+		Questions: []string{"apple", "banana", "cat", "dog", "egg", "fish"},
+	}
+	t := 10 * time.Second
+	c := &Cli{InputReader: &Reader{}}
+	c.Run(e, t)
+}
diff --git a/kadai3-1/nas/simpletype/pkg/exercise/exercise.go b/kadai3-1/nas/simpletype/pkg/exercise/exercise.go
new file mode 100644
index 0000000..88e5ec3
--- /dev/null
+++ b/kadai3-1/nas/simpletype/pkg/exercise/exercise.go
@@ -0,0 +1,28 @@
+package exercise
+
+// Exercise has questions and now question number
+type Exercise struct {
+	Questions      []string
+	NowQuestionNum int
+}
+
+// Next return Question stil has questions or not
+func (e *Exercise) Next() bool {
+	if e.NowQuestionNum >= len(e.Questions) {
+		e.NowQuestionNum++
+		return false
+	}
+	e.NowQuestionNum++
+	return true
+}
+
+// Get return question
+func (e *Exercise) Get() string {
+	if e.NowQuestionNum == 0 {
+		return ""
+	}
+	if e.NowQuestionNum > len(e.Questions) {
+		return ""
+	}
+	return e.Questions[e.NowQuestionNum-1]
+}
diff --git a/kadai3-1/nas/simpletype/pkg/exercise/exercise_test.go b/kadai3-1/nas/simpletype/pkg/exercise/exercise_test.go
new file mode 100644
index 0000000..2f40c89
--- /dev/null
+++ b/kadai3-1/nas/simpletype/pkg/exercise/exercise_test.go
@@ -0,0 +1,49 @@
+package exercise
+
+import "testing"
+
+func setup(t *testing.T) *Exercise {
+	t.Helper()
+	e := &Exercise{
+		Questions: []string{"apple", "banana", "cat", "dog", "egg", "fish"},
+	}
+	return e
+}
+
+func TestExerciseNext(t *testing.T) {
+	e := setup(t)
+	if want, got := true, e.Next(); want != got {
+		t.Errorf("e.Next() => %t, but want %t", got, want)
+	}
+}
+
+func TestExerciseNextFalse(t *testing.T) {
+	e := setup(t)
+	e.NowQuestionNum = 6
+	if want, got := false, e.Next(); want != got {
+		t.Errorf("e.Next() => %t, but want %t", got, want)
+	}
+}
+
+func TestExerciseGet(t *testing.T) {
+	e := setup(t)
+	e.Next()
+	if want, got := "apple", e.Get(); want != got {
+		t.Errorf("e.Got() => %s, but want %s", got, want)
+	}
+}
+
+func TestExerciseGetNoNext(t *testing.T) {
+	e := setup(t)
+	if want, got := "", e.Get(); want != got {
+		t.Errorf("e.Got() => %s, but want %s", got, want)
+	}
+}
+
+func TestExerciseGetFinished(t *testing.T) {
+	e := setup(t)
+	e.NowQuestionNum = 7
+	if want, got := "", e.Get(); want != got {
+		t.Errorf("e.Got() => %s, but want %s", got, want)
+	}
+}