>Both dramas female leads hide their identity
>Both Female leads hate male lead in the beginning
>Both are set in same time line
>Even the poster looks the same lol

In both dramas, female leads are actresses and remain frozen for 20+ years and start a new life pursuing new romantic interests except in Ice girl has a questionable romantic interest

>>Both leads work in the crime investigation team
>>Both dramas revolve around a serial murder case
>>Both dramas have supernatural travel to an alternate world

>In Both dramas female leads are cold-hearted, picky and hated by everyone at the beginning
>In Both dramas female leads are childhood sweethearts of male leads
>In Both dramas we have co-habitation
>In both dramas male lead's are poor where female leads are Rich
>In both dramas male lead hates/cold towards female lead in the beginning but falls in love
>In angels last mission male lead abused by his father whereon it's okay to not be okay female is abused by her father where both the leads fathers end up in hospital during their final suffering
>We can draw a lot of similarities between both the dramas vice-versa

>>Both the leads have childhood traumas who later get along
>>Both male leads have a crush on female leads during their childhood
>>Both dramas are set in countryside

Repeat and Meet Me @1006 both have time manipulation
Where Meet Me @ 1006 has more romance than Repeat
In Both dramas main characters regret there past doings where they get chance to correct them

Nice witch and i have a lover both main leads are twins who are identical switches places
Nice witch has more comedy where i have a lover is complete melodrama

*The two main characters are from different worlds meet and has a romantic relationship
*The male lead has special ability to travel from one world to another

in both dramas main lead travels back to past
where legend of ace is more comical version and main lead is funny

both the dramas based time-slip/time-travel concepts where male lead travels to past and falls in love with female leads

sequal of a step into the past (2001) HK and this one has more pun and even female leads are beautiful

in this drama main character time-slips to tang dynasty similarly and uses the knowledge of history to survive and in doing this they both get fame and popularity