Season 1
Artwork
No image
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | Oh Sung Moo Has Disappeared! | Jul 20, 2016 |
| 2 |  | Find Her, the Key to My Life | Jul 21, 2016 |
| 3 |  | I Am Someone Who Will Do That | Jul 27, 2016 |
| 4 |  | What Is This World You Live In? | Jul 28, 2016 |
| 5 |  | I've Come Here. To Your World | Aug 3, 2016 |
| 6 |  | The End | Aug 4, 2016 |
| 7 |  | Chul and Yeon Joo Get Married | Aug 10, 2016 |
| 8 |  | The Killer Is After You | Aug 17, 2016 |
| 9 |  | Make It a Happy Ending | Aug 18, 2016 |
| 10 |  | The World Controlled by the Killer | Aug 24, 2016 |
| 11 |  | What Happens Next? | Aug 25, 2016 |
| 12 |  | Chul's Second Awakening | Aug 31, 2016 |
| 13 |  | For the Last Episode of W | Sep 1, 2016 |
| 14 |  | Secret of the Tablet | Sep 7, 2016 |
| 15 |  | Which Kind of Ending Will It Be? | Sep 8, 2016 |
| 16 |  | After W Ends | Sep 14, 2016 |