Abd Superman

time travel
butterfly effect want to change the past
both are emotional
this Taiwanese one has so much remakes so you could guess how goated is this series

time travel concept
guilt , characters want to change their past
this is the exact thing you are looking for

office settings and misunderstanding
honestly business proposal and crazy love and no gain no love are in same category so if i had to rate all of them
business proposal = no gain no love >crazy love
business proposal give instant comedy within few mins but in no gain no love you have to wait for 1-2 eps as it initially take time to set it plots and sub stories then it get interesting

both are mature life themed drama and every story line makes sense . melo is just slow paced and goodbye is at good pace . both of them are excellent watch

both are in dark nature and all character are interconnected to each other . this is the excat drama you are looking for if you loves these type of series. netflix masters it in producing these type of stuff

disaster film
exit is human induced disaster more like terror arrack
utopia is also natural disaster

both movie has north Korea setup
bit of spy element
bulk of expectation from everywhere wheter it is family or party

hellhounds contain similar characters as both also revolve around the supernatural.
The differences may be in the entities and story background. These two films have a similar feel of terror, the atmosphere given is also the same.