Norell

watched the first 10 episodes and I think I'll wait now until all the episodes are aired and binge watch it then.

I'm not sure because i don't have netflix but it can be that this drama has an 1-hour episode format instead of a 30-minute episode format at netflix.
So both can be correct.
40 Episodes = 30 minutes format
20 Episodes = 1 hour format

Watch it from the official links:
(there are no subtitles yet)
Ep 1: https://youtu.be/--plMKUa0oY
Ep 2: https://youtu.be/d2JaiHpd0TE
Ep 3: https://youtu.be/aVNuI0YTM4A
Ep 4: https://youtu.be/L9VH-0bWLa0
Ep 5: https://youtu.be/CmbOLvxAFNQ
Ep 6: https://youtu.be/S-SC_pVfRCs

Watch it from the official links with English subtitles:
Ep 1: https://youtu.be/Fra4vluCeLs
Ep 2: https://youtu.be/31YTpZPNXTw
Ep 3: https://youtu.be/jqVSC7gdUEA
Ep 4: https://youtu.be/9BDX5GKLI0A
Ep 5: https://youtu.be/yhqW0mHIbMc
Ep 6: https://youtu.be/ePFZF5lk0e8

Wow.. the latest episode was just wow

Thanks to this drama I'm now in a slump