Density of Summer

“We’re siblings.”

Every South Korean knows Cha Seung-Jo, a soccer player, and Lee Seo-Hui, who grew up in the same house, are like siblings. After 18-year-old Seung-Jo told Seo-Hui that he liked her, he never returned to Haeyoung, where Seo-hui was. Six full years had passed.

“I endured until I succeeded, until I became a real adult.”

“Six years is enough. Don’t tell me to endure any longer, Seo-Hui.”

Cha Seung-Jo, who had returned as a respectable adult, was no longer an 18-year-old boy. Perhaps that’s why… Seo-Hui feels her heart pounding, unlike six years ago.

“Just ten days, let’s date.”

Seo-Hui decides to make a choice about her relationship with Seung-Jo. Live like siblings, pretend not to know each other, or become lovers.