Both are coming of age stories about teenage, rough, tomboyish, rebellious, really stubborn girls. In both stories, the love between leads are deemed unacceptable. In Massaya, it's love between cousins (who are not blood related). In SKD, it's about a loving niece and aunt falling for male lead who loves the niece. Both shows even have the same actor portraying the role of a caring friendly/avuncular/fatherly-figure "prince". In both remakes (2017 and 2018), lead couples have significant air time. However, couple time is much sweeter and less frustrating in Massaya (if you skip over the grandma and all those negative characters...). In SKD, it's mainly the female lead who stubbornly stops the couple from getting together.