"A 19-year-old girl who wants to die. A 19-year-old boy who wants to save her. I want to spend it with you— 'Our Beautiful Summer' that will never return." 'Our Beautiful Summer' is part of TvN’s 'O'PENing' project to introduce new writers and actors to everyone.

• Jang Gyu-ri
• Kim Min-ki
• Yoo Young-jae
• Son Sang-yeon
• Kim So-hye
• Shin Eun-jung
• Park Won-sang
• Han Ye-ji