Ruddy Cheeks

Yoon San and Hae Kyung had known each other since childhood, but everything changed when Hae Kyung's secondary gender manifested and their bond became just a distant memory. Years later, Yoon San, now revealed to be an omega, runs into Hae Kyung by chance at an amusement park. The two begin secretly keeping in touch behind the adults’ backs. Through their teenage years, they could only sense each other through faint pheromones clinging to clothes and messages sent late at night. Now, as grown adults, fate brings them together once again on Jeju Island… Source: MU Includes 38 extra chapters.