Splash Splash Love is like the short version of Scarlet Heart (minus the gender-bendering), a condensed version of Scarlet Heart minus all the agony and politics. SSL is also more light-hearted, less serious and focuses more on the romance compare to Scarlet Heart. If you want to see some cute and comical time traveling, SSL is for you. If you want to see some politics, more character developments, as well as more interactions with side characters, you can watch Scarlet Heart but bring some tissues with you! Both modern female leads time travels to the past with some knowledge of history but SSL involves Korean History whereas Scarlet Heart involves Chinese History.