The two girls, Mi-so and Ha-eun, who were born in 1988, spent their childhood together and experienced a rather tortuous relationship as they grew up. Their peaceful world was slightly broken when Ha-eun and her classmate Jin-woo began their first love in their teens. The free-spirited Mi-so went to the city to pursue an adventurous life, while Ha-eun stayed in her hometown to live a stable life, and the two gradually drifted apart...