Season 5

1. WHAT? DOOR! EP.36 | Documentary 1 Day - 24 Hours of Six Young Professionals: Hanmun Company Part 1

2. WHAT? DOOR! EP.37 | A Day in the Life of a K-Office Worker: Hanmun Company Part 2

3. WHAT? DOOR! EP.38 | Reasons Why You Shouldn't Leave Your Child with Dad: Parenting Diary

4. WHAT? DOOR! EP.39 | Master, You Know.. Can I Drop by on Tuesday?!: Taekwondo Next Door

5. WHAT? DOOR! EP.40 | My Name is Boy Next Door, I'm a Detective: Great Detective Next Door

6. WHAT? DOOR! EP.41 | You Want Me to Fail? No, Never!: Detective Next Door

7. WHAT? DOOR! EP.42 | Goodnight: Sleep Champion League

8. WHAT? DOOR! EP.43 | This Video Will Become a Holy Site in 10 Years: Anything to Ask?

9. WHAT? DOOR! EP.44 | The Vanished Night