--Same transmission, time travel troupe.
--Both leads transmigrate, are very intelligent, have family feud, business opportunities etc.
--JoL world is set in ancient china whereas RR has modern settings.
--Both shows have good pacing, mystery and thriller elements.
--Both shows has slight and slow romance.
--JoL is more focused on military mind games while as RR more focuses on business aspects.

IN PLOT LOVE in order to investigate the truth about the suicide by the only relative,FL had to restrain herself and pretend to be a virtuous wife, approaching her "ex-husband" ML who had not been in contact for seven years. while in LIE TO LOVE she pretends to be amnesiac for same cause.
In both shows they clear the misunderstanding later.