I literally just saw this as an ad on Facebook and ey Kim donghyun is my bias in Ab6ix. I stalked AB6IX official…
On DramaWave, the title of this series is "Lying for Love, Loving the Lie." On other platforms, the title is "The Romance of Zero Chance." The alternative name has already been submitted to MyDramaList.
I think the biggest difference is that DramaWave has more content translated, so in other words, more (extensive) subtitles than the other platforms with English subtitles. I think all platforms offer the first few episodes for free, so you can check all of them and choose the one that is best for you.
The total number of episodes is unknown. MyDramaList (MDL) relies only on verified information, and the first official release schedule shows only five episodes. The number of episodes cannot be updated on MDL until a new release schedule is published with more episodes or until the total number of episodes is announced.
The official release with only Chinese subtitles is available on the account 罗正_LZ on Kuaishou. As far as I know, there is currently no official release with English subtitles. Link: https://www.kuaishou.com/profile/3xb8zv4ngzbmfv4
DramaBox app: https://www.dramaboxapp.com/film/42000003077
DramaWave app: https://mydramawave.com/share/episode/QgGcylS7zH
GoodShort app: https://www.goodshort.com/drama/the-romance-of-zero-chance-31001287200
Heavenly: https://heavenly.tv/en/detail/1050
Kitz app: https://kitzofficial.com//content/mk6jj9k8
ShortMax app (only Korean subtitles): https://h5.shorttv.live/share02.html?shortPlayId=16271
Shortcha (in Korea with only Korean subtitles and in Japan with only Japanese subtitles): https://shortcha.com/content/gstd0Mzn3Vj
Watcha (in Korea with only Korean subtitles): https://watcha.com/contents/gstd0Mzn3Vj
Official YouTube movie version: https://youtu.be/4A-ER0u3Do4
Official YouTube movie version: https://youtu.be/_Y3744zH__E
Official refined YouTube movie version: https://youtu.be/9tzH_DXV3qg