Sure! There are several CDramas and K-dramas that fit the description of the main leads breaking up and reuniting years later. Here are a few dramas from the specified time frame:
1. Love O2O (Chinese Drama) - 2016: This drama follows the story of two college students, Bei Weiwei and Xiao Nai, who fall in love through an online game. They later meet and start dating but face challenges in their relationship. The drama beautifully portrays their love story and how they find their way back to each other.
2. The Eternal Love (Chinese Drama) - 2017: The Eternal Love is a romantic comedy that revolves around Qu Tan'er, a modern-day girl who time-travels to the past and ends up in the body of Qu Xiao Tan, a naive and innocent princess. She falls in love with the Eighth Prince, Mo Liancheng. Due to various circumstances, they get separated but reunite in the future.
3. Something in the Rain (Korean Drama) - 2018: This drama tells the story of Yoon Jin-ah and Seo Joon-hee, who fall in love despite their age difference. However, societal pressures and family interference lead to their breakup. The drama explores their struggles and the possibility of rekindling their relationship later in life.
4. Love and Destiny (Chinese Drama) - 2019: This fantasy romance drama follows the love story between god of war Jiu Chen and the fox spirit Bai Qian. Due to unforeseen circumstances, they are separated but meet again several centuries later, allowing their love to blossom once more.
5. When My Love Blooms (Korean Drama) - 2020: The drama portrays the story of Han Jae-hyun and Yoon Ji-soo, who fall in love during their college days but are torn apart by various obstacles. Years later, they reunite as adults, and their feelings for each other resurface.
These dramas should fulfill your desire for stories about main leads breaking up and reuniting later in the timeline. Remember that each drama has its unique plot and style, so you may find them quite engaging in their own ways! Enjoy watching!