One of the main leads is riding a parachute as a hobby to escape family problems. The wind directed them and have them crash landed to an environment very unfamiliar to them. In this strange new environment is where our main lead met his/her future lover and where he/she develops a close relationship with not only his/her lover but the whole townsfolk living in that new environment. One half of the lead couple also each happened to be engaged to marry another person his family members wants him to marry which he did not love, main difference being that the one engaged in CLOY is the person who lives in the new environment while the one engaged in Forevermore is the guy who crash landed to the environment. The political situation of the two Koreas in CLOY is also another obvious difference.
It's also interesting that the actors playing the couples in both dramas are real life couples and that these two dramas are not the first time each of the two couples acted together. Each couple did a movie together (Forevermore couple - She's the One 2013 movie; CLOY couple - The Negotiation 2018 movie) where they did not play couples before these two dramas. Before the two movies, both couples also did projects where one-half of the couple is an important character in the project while the other one was a cameo in that project (Forevermore couple - Xander actor did a cameo in Must Be Love 2013 movie that featured Agnes actress as the third wheel; CLOY couple - Yoon Se Ri actress did a cameo in Secret Garden 2010 drama that featured Captain Ri actor as the main male character).
It's also interesting that the actors playing the couples in both dramas are real life couples and that these two dramas are not the first time each of the two couples acted together. Each couple did a movie together (Forevermore couple - She's the One 2013 movie; CLOY couple - The Negotiation 2018 movie) where they did not play couples before these two dramas. Before the two movies, both couples also did projects where one-half of the couple is an important character in the project while the other one was a cameo in that project (Forevermore couple - Xander actor did a cameo in Must Be Love 2013 movie that featured Agnes actress as the third wheel; CLOY couple - Yoon Se Ri actress did a cameo in Secret Garden 2010 drama that featured Captain Ri actor as the main male character).
