diff --git a/slides-kintone-for-hackathon/001.png b/slides-kintone-for-hackathon/001.png
deleted file mode 100644
index 652233b..0000000
Binary files a/slides-kintone-for-hackathon/001.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/002.png b/slides-kintone-for-hackathon/002.png
deleted file mode 100644
index 98d15f3..0000000
Binary files a/slides-kintone-for-hackathon/002.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/003.png b/slides-kintone-for-hackathon/003.png
deleted file mode 100644
index 8e5dcb8..0000000
Binary files a/slides-kintone-for-hackathon/003.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/004.png b/slides-kintone-for-hackathon/004.png
deleted file mode 100644
index e1403f7..0000000
Binary files a/slides-kintone-for-hackathon/004.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/005.png b/slides-kintone-for-hackathon/005.png
deleted file mode 100644
index dc85d36..0000000
Binary files a/slides-kintone-for-hackathon/005.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/006.png b/slides-kintone-for-hackathon/006.png
deleted file mode 100644
index 431eb9a..0000000
Binary files a/slides-kintone-for-hackathon/006.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/007.png b/slides-kintone-for-hackathon/007.png
deleted file mode 100644
index d50e126..0000000
Binary files a/slides-kintone-for-hackathon/007.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/008.png b/slides-kintone-for-hackathon/008.png
deleted file mode 100644
index f21e2b8..0000000
Binary files a/slides-kintone-for-hackathon/008.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/009.png b/slides-kintone-for-hackathon/009.png
deleted file mode 100644
index a5e4607..0000000
Binary files a/slides-kintone-for-hackathon/009.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/010.png b/slides-kintone-for-hackathon/010.png
deleted file mode 100644
index d7195f9..0000000
Binary files a/slides-kintone-for-hackathon/010.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/011.png b/slides-kintone-for-hackathon/011.png
deleted file mode 100644
index 9a5d461..0000000
Binary files a/slides-kintone-for-hackathon/011.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/012.png b/slides-kintone-for-hackathon/012.png
deleted file mode 100644
index 6c4d913..0000000
Binary files a/slides-kintone-for-hackathon/012.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/013.png b/slides-kintone-for-hackathon/013.png
deleted file mode 100644
index 5cfb6dc..0000000
Binary files a/slides-kintone-for-hackathon/013.png and /dev/null differ
diff --git a/slides-kintone-for-hackathon/014.png b/slides-kintone-for-hackathon/014.png
deleted file mode 100644
index 8778ff6..0000000
Binary files a/slides-kintone-for-hackathon/014.png and /dev/null differ