diff --git a/internal/go-console/getch/ctrlc.go b/internal/go-console/getch/ctrlc.go
deleted file mode 100644
index 8e47538..0000000
--- a/internal/go-console/getch/ctrlc.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package getch
-
-import (
-	"os"
-	"os/signal"
-)
-
-func (h *Handle) ctrlCHandler(ch chan os.Signal) {
-	for _ = range ch {
-		event1 := Event{Key: &keyEvent{3, 0, LEFT_CTRL_PRESSED}}
-		if h.eventBuffer == nil {
-			h.eventBuffer = []Event{event1}
-			h.eventBufferRead = 0
-		} else {
-			h.eventBuffer = append(h.eventBuffer, event1)
-		}
-	}
-}
-
-func (h *Handle) IsCtrlCPressed() bool {
-	if h.eventBuffer != nil {
-		for _, p := range h.eventBuffer[h.eventBufferRead:] {
-			if p.Key != nil && p.Key.Rune == rune(3) {
-				return true
-			}
-		}
-	}
-	return false
-}
-
-func (h *Handle) DisableCtrlC() {
-	ch := make(chan os.Signal, 1)
-	signal.Notify(ch, os.Interrupt)
-	go h.ctrlCHandler(ch)
-}
diff --git a/internal/go-console/getch/example4/example4.go b/internal/go-console/getch/example4/example4.go
deleted file mode 100644
index 6355498..0000000
--- a/internal/go-console/getch/example4/example4.go
+++ /dev/null
@@ -1,48 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	time.Sleep(time.Second / 10)
-	getch.Flush()
-
-	// wait keyboard-event (timeout: 10-seconds)
-	ok, err := getch.Wait(10000)
-	if err != nil {
-		fmt.Println(err.Error())
-		return
-	}
-	if !ok {
-		fmt.Println("Time-out")
-		return
-	}
-
-	// get console event
-	e := getch.All()
-	if k := e.Key; k != nil {
-		fmt.Printf("key down: code=%04X scan=%04X shift=%04X\n",
-			k.Rune, k.Scan, k.Shift)
-	}
-	if k := e.KeyUp; k != nil {
-		fmt.Printf("key up: code=%04X scan=%04X shift=%04X\n",
-			k.Rune, k.Scan, k.Shift)
-	}
-	if r := e.Resize; r != nil {
-		fmt.Printf("window resize: width=%d height=%d\n",
-			r.Width, r.Height)
-	}
-	if e.Mouse != nil {
-		fmt.Println("mouse event")
-	}
-	if e.Menu != nil {
-		fmt.Println("menu event")
-	}
-	if e.Focus != nil {
-		fmt.Println("focus event")
-	}
-}
diff --git a/internal/go-console/getch/example5/main.go b/internal/go-console/getch/example5/main.go
deleted file mode 100644
index 9cb7bfa..0000000
--- a/internal/go-console/getch/example5/main.go
+++ /dev/null
@@ -1,28 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	getch.Flush()
-
-	// get console event
-	fmt.Println("Type ESC-Key to program shutdown.")
-	for {
-		e := getch.All()
-		if k := e.Key; k != nil {
-			fmt.Printf("key down: code=%04X scan=%04X shift=%04X\n",
-				k.Rune, k.Scan, k.Shift)
-		}
-		if k := e.KeyUp; k != nil {
-			fmt.Printf("key up: code=%04X scan=%04X shift=%04X\n",
-				k.Rune, k.Scan, k.Shift)
-			if k.Rune == 0x1B {
-				break
-			}
-		}
-	}
-}
diff --git a/internal/go-console/getch/getch.go b/internal/go-console/getch/getch.go
deleted file mode 100644
index 0aa5274..0000000
--- a/internal/go-console/getch/getch.go
+++ /dev/null
@@ -1,259 +0,0 @@
-package getch
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-	"unicode/utf16"
-
-	"github.com/hymkor/expect/internal/go-console/input"
-)
-
-const (
-	RIGHT_ALT_PRESSED  = 1
-	LEFT_ALT_PRESSED   = 2
-	RIGHT_CTRL_PRESSED = 4
-	LEFT_CTRL_PRESSED  = 8
-	CTRL_PRESSED       = RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED
-	ALT_PRESSED        = RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED
-)
-
-type keyEvent struct {
-	Rune  rune
-	Scan  uint16
-	Shift uint32
-}
-
-func (k keyEvent) String() string {
-	return fmt.Sprintf("Rune:%v,Scan=%d,Shift=%d", k.Rune, k.Scan, k.Shift)
-}
-
-type resizeEvent struct {
-	Width  uint
-	Height uint
-}
-
-func (r resizeEvent) String() string {
-	return fmt.Sprintf("Width:%d,Height:%d", r.Width, r.Height)
-}
-
-const ( // Button
-	FROM_LEFT_1ST_BUTTON_PRESSED = 0x0001
-	FROM_LEFT_2ND_BUTTON_PRESSED = 0x0004
-	FROM_LEFT_3RD_BUTTON_PRESSED = 0x0008
-	FROM_LEFT_4TH_BUTTON_PRESSED = 0x0010
-	RIGHTMOST_BUTTON_PRESSED     = 0x0002
-)
-
-type Event struct {
-	Focus   *struct{} // MS says it should be ignored
-	Key     *keyEvent // == KeyDown
-	KeyDown *keyEvent
-	KeyUp   *keyEvent
-	Menu    *struct{}                      // MS says it should be ignored
-	Mouse   *consoleinput.MouseEventRecord // not supported,yet
-	Resize  *resizeEvent
-}
-
-func (e Event) String() string {
-	event := make([]string, 0, 7)
-	if e.Focus != nil {
-		event = append(event, "Focus")
-	}
-	if e.KeyDown != nil {
-		event = append(event, "KeyDown("+e.KeyDown.String()+")")
-	}
-	if e.KeyUp != nil {
-		event = append(event, "KeyUp("+e.KeyUp.String()+")")
-	}
-	if e.Menu != nil {
-		event = append(event, "Menu")
-	}
-	if e.Mouse != nil {
-		event = append(event, "Mouse")
-	}
-	if e.Resize != nil {
-		event = append(event, "Resize("+e.Resize.String()+")")
-	}
-	if len(event) > 0 {
-		return strings.Join(event, ",")
-	} else {
-		return "no events"
-	}
-}
-
-type Handle struct {
-	consoleinput.Handle
-	lastkey         *keyEvent
-	eventBuffer     []Event
-	eventBufferRead int
-}
-
-func New() *Handle {
-	return &Handle{Handle: consoleinput.New()}
-}
-
-func (h *Handle) Close() {
-	h.Handle.Close()
-}
-
-func (h *Handle) readEvents(flag uint32) []Event {
-	orgConMode := h.GetConsoleMode()
-	h.SetConsoleMode(flag)
-	defer h.SetConsoleMode(orgConMode)
-
-	result := make([]Event, 0, 2)
-
-	for len(result) <= 0 {
-		var events [10]consoleinput.InputRecord
-		numberOfEventsRead := h.Read(events[:])
-
-		for i := uint32(0); i < numberOfEventsRead; i++ {
-			e := events[i]
-			var r Event
-			switch e.EventType {
-			case consoleinput.FOCUS_EVENT:
-				r = Event{Focus: &struct{}{}}
-			case consoleinput.KEY_EVENT:
-				p := e.KeyEvent()
-				k := &keyEvent{
-					Rune:  rune(p.UnicodeChar),
-					Scan:  p.VirtualKeyCode,
-					Shift: p.ControlKeyState,
-				}
-				if p.KeyDown != 0 {
-					r = Event{Key: k, KeyDown: k}
-				} else {
-					r = Event{KeyUp: k}
-				}
-			case consoleinput.MENU_EVENT:
-				r = Event{Menu: &struct{}{}}
-			case consoleinput.MOUSE_EVENT:
-				p := e.MouseEvent()
-				r = Event{
-					Mouse: &consoleinput.MouseEventRecord{
-						X:          p.X,
-						Y:          p.Y,
-						Button:     p.Button,
-						ControlKey: p.ControlKey,
-						Event:      p.Event,
-					},
-				}
-			case consoleinput.WINDOW_BUFFER_SIZE_EVENT:
-				width, height := e.ResizeEvent()
-				r = Event{
-					Resize: &resizeEvent{
-						Width:  uint(width),
-						Height: uint(height),
-					},
-				}
-			default:
-				continue
-			}
-			result = append(result, r)
-		}
-	}
-	return result
-}
-
-func (h *Handle) bufReadEvent(flag uint32) Event {
-	for h.eventBuffer == nil || h.eventBufferRead >= len(h.eventBuffer) {
-		h.eventBuffer = h.readEvents(flag)
-		h.eventBufferRead = 0
-	}
-	h.eventBufferRead++
-	return h.eventBuffer[h.eventBufferRead-1]
-}
-
-// Get a event with concatinating a surrogate-pair of keyevents.
-func (h *Handle) getEvent(flag uint32) Event {
-	for {
-		event1 := h.bufReadEvent(flag)
-		if k := event1.Key; k != nil {
-			println(k.Rune)
-			if h.lastkey != nil {
-				k.Rune = utf16.DecodeRune(h.lastkey.Rune, k.Rune)
-				h.lastkey = nil
-			} else if utf16.IsSurrogate(k.Rune) {
-				h.lastkey = k
-				continue
-			}
-		}
-		return event1
-	}
-}
-
-const ALL_EVENTS = consoleinput.ENABLE_WINDOW_INPUT | consoleinput.ENABLE_MOUSE_INPUT
-
-// Get all console-event (keyboard,resize,...)
-func (h *Handle) All() Event {
-	return h.getEvent(ALL_EVENTS)
-}
-
-const IGNORE_RESIZE_EVENT uint32 = 0
-
-// Get character as a Rune
-func (h *Handle) Rune() rune {
-	for {
-		e := h.getEvent(IGNORE_RESIZE_EVENT)
-		if e.Key != nil && e.Key.Rune != 0 {
-			return e.Key.Rune
-		}
-	}
-}
-
-func (h *Handle) Flush() error {
-	org := h.GetConsoleMode()
-	h.SetConsoleMode(ALL_EVENTS)
-	defer h.SetConsoleMode(org)
-
-	h.eventBuffer = nil
-	return h.FlushConsoleInputBuffer()
-}
-
-// wait for keyboard event
-func (h *Handle) Wait(timeout_msec uintptr) (bool, error) {
-	status, err := h.WaitForSingleObject(timeout_msec)
-	switch status {
-	case consoleinput.WAIT_OBJECT_0:
-		return true, nil
-	case consoleinput.WAIT_TIMEOUT:
-		return false, nil
-	case consoleinput.WAIT_ABANDONED:
-		return false, errors.New("WAIT_ABANDONED")
-	default: // including WAIT_FAILED:
-		if err != nil {
-			return false, err
-		} else {
-			return false, errors.New("WAIT_FAILED")
-		}
-	}
-}
-
-func (h *Handle) Within(msec uintptr) (Event, error) {
-	orgConMode := h.GetConsoleMode()
-	h.SetConsoleMode(ALL_EVENTS)
-	defer h.SetConsoleMode(orgConMode)
-
-	if ok, err := h.Wait(msec); err != nil || !ok {
-		return Event{}, err
-	}
-	return h.All(), nil
-}
-
-const NUL = '\000'
-
-func (h *Handle) RuneWithin(msec uintptr) (rune, error) {
-	orgConMode := h.GetConsoleMode()
-	h.SetConsoleMode(IGNORE_RESIZE_EVENT)
-	defer h.SetConsoleMode(orgConMode)
-
-	if ok, err := h.Wait(msec); err != nil || !ok {
-		return NUL, err
-	}
-	e := h.getEvent(IGNORE_RESIZE_EVENT)
-	if e.Key != nil {
-		return e.Key.Rune, nil
-	}
-	return NUL, nil
-}
diff --git a/internal/go-console/getch/getch_test.go b/internal/go-console/getch/getch_test.go
deleted file mode 100644
index 866cd29..0000000
--- a/internal/go-console/getch/getch_test.go
+++ /dev/null
@@ -1,85 +0,0 @@
-package getch
-
-import (
-	"fmt"
-	"testing"
-	"time"
-)
-
-func reportEvent(e Event) {
-	if k := e.Key; k != nil {
-		fmt.Printf("key down: code=%04X scan=%04X shift=%04X\n",
-			k.Rune, k.Scan, k.Shift)
-	}
-	if k := e.KeyUp; k != nil {
-		fmt.Printf("key up: code=%04X scan=%04X shift=%04X\n",
-			k.Rune, k.Scan, k.Shift)
-	}
-	if r := e.Resize; r != nil {
-		fmt.Printf("window resize: width=%d height=%d\n",
-			r.Width, r.Height)
-	}
-	if e.Mouse != nil {
-		fmt.Println("mouse event")
-	}
-	if e.Menu != nil {
-		fmt.Println("menu event")
-	}
-	if e.Focus != nil {
-		fmt.Println("focus event")
-	}
-}
-
-func TestAll(t *testing.T) {
-	if err := Flush(); err != nil {
-		t.Error(err.Error())
-		return
-	}
-	for i := 0; i < 3; i++ {
-		fmt.Printf("[%d/3] ", i+1)
-		reportEvent(All())
-	}
-}
-
-func TestCount(t *testing.T) {
-	var err error
-	if err = Flush(); err != nil {
-		t.Error(err.Error())
-		return
-	}
-	var n int
-	for {
-		n, err = Count()
-		if err != nil {
-			t.Error(err.Error())
-			return
-		}
-		if n > 0 {
-			break
-		}
-		fmt.Println("sleep")
-		time.Sleep(time.Second)
-	}
-	fmt.Printf("break(n=%d)\n", n)
-	reportEvent(All())
-}
-
-func TestWait(t *testing.T) {
-	var err error
-	if err = Flush(); err != nil {
-		t.Error(err.Error())
-		return
-	}
-	for {
-		hit, hit_err := Wait(1000)
-		if hit_err != nil {
-			t.Error(hit_err.Error())
-			return
-		}
-		if hit {
-			break
-		}
-		fmt.Println("Nothing")
-	}
-	reportEvent(All())
-}
diff --git a/internal/go-console/getch/global.go b/internal/go-console/getch/global.go
deleted file mode 100644
index 1e84c11..0000000
--- a/internal/go-console/getch/global.go
+++ /dev/null
@@ -1,58 +0,0 @@
-package getch
-
-var hconin *Handle
-
-func lazyinit() {
-	if hconin != nil {
-		return
-	}
-	hconin = New()
-}
-
-// Get all console-event (keyboard,resize,...)
-func All() Event {
-	lazyinit()
-	return hconin.All()
-}
-
-// Get character as a Rune
-func Rune() rune {
-	lazyinit()
-	return hconin.Rune()
-}
-
-func Count() (int, error) {
-	lazyinit()
-	return hconin.GetNumberOfEvent()
-}
-
-func Flush() error {
-	lazyinit()
-	return hconin.Flush()
-}
-
-// wait for keyboard event
-func Wait(timeout_msec uintptr) (bool, error) {
-	lazyinit()
-	return hconin.Wait(timeout_msec)
-}
-
-func Within(msec uintptr) (Event, error) {
-	lazyinit()
-	return hconin.Within(msec)
-}
-
-func RuneWithin(msec uintptr) (rune, error) {
-	lazyinit()
-	return hconin.RuneWithin(msec)
-}
-
-func IsCtrlCPressed() bool {
-	lazyinit()
-	return hconin.IsCtrlCPressed()
-}
-
-func DisableCtrlC() {
-	lazyinit()
-	hconin.DisableCtrlC()
-}
diff --git a/internal/go-console/getch/test_IsCtrlCPressed/example3.go b/internal/go-console/getch/test_IsCtrlCPressed/example3.go
deleted file mode 100644
index 6186367..0000000
--- a/internal/go-console/getch/test_IsCtrlCPressed/example3.go
+++ /dev/null
@@ -1,20 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	getch.DisableCtrlC()
-
-	for i := 5; i >= 0; i-- {
-		fmt.Printf("%d\n", i)
-		time.Sleep(time.Second)
-	}
-	if getch.IsCtrlCPressed() {
-		fmt.Println("^C")
-	}
-}
diff --git a/internal/go-console/getch/test_all/example2.go b/internal/go-console/getch/test_all/example2.go
deleted file mode 100644
index 75ded72..0000000
--- a/internal/go-console/getch/test_all/example2.go
+++ /dev/null
@@ -1,18 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-const COUNT = 5
-
-func main() {
-	getch.Flush()
-	for i := 0; i < COUNT; i++ {
-		fmt.Printf("[%d/%d] ", i+1, COUNT)
-		e := getch.All()
-		fmt.Println(e.String())
-	}
-}
diff --git a/internal/go-console/getch/test_rune/main.go b/internal/go-console/getch/test_rune/main.go
deleted file mode 100644
index 44b4e83..0000000
--- a/internal/go-console/getch/test_rune/main.go
+++ /dev/null
@@ -1,16 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	time.Sleep(time.Second / 10)
-	getch.Flush()
-
-	ch := getch.Rune()
-	fmt.Printf("%08X\n", ch)
-}
diff --git a/internal/go-console/getch/test_runewithin/test_runewithin.go b/internal/go-console/getch/test_runewithin/test_runewithin.go
deleted file mode 100644
index 68633b5..0000000
--- a/internal/go-console/getch/test_runewithin/test_runewithin.go
+++ /dev/null
@@ -1,18 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	for i := 0; i < 5; i++ {
-		r, err := getch.RuneWithin(1000)
-		if err != nil {
-			fmt.Println(err.Error())
-		} else {
-			fmt.Printf("typed = '%v'\n", r)
-		}
-	}
-}
diff --git a/internal/go-console/getch/test_within/test_within.go b/internal/go-console/getch/test_within/test_within.go
deleted file mode 100644
index 7fe2fd5..0000000
--- a/internal/go-console/getch/test_within/test_within.go
+++ /dev/null
@@ -1,18 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/hymkor/expect/internal/go-console/getch"
-)
-
-func main() {
-	for i := 0; i < 5; i++ {
-		e, err := getch.Within(1000)
-		if err != nil {
-			fmt.Println(err.Error())
-		} else {
-			fmt.Println(e.String())
-		}
-	}
-}