Min Se-joon (baptismal name Antonio - Im Hyeong-joo) is a seminary student who decides to walk down this path to comfort his mind and soul after having lost his family. During the vacation of the final semester before ordination, he meets his school friend Yoon Ji-ho (Baek Soo-jang) and his first love Han Seo-yeon (Lee Ga-kyeong) for the first time in 10 years. The final confession, which he kept deep inside his heart, rings out between human and god!