Japan and Korea's biggest names star in this big-scale drama. Nishijima Sho is a Japanese detective whose father was murdered in Korea when he was still a boy. In hopes of discovering the truth behind his father's death, Sho is working undercover in a huge secret organization. Choi Yuna is a Korean woman who visits Japan in search of her missing father. She opens a Korean restaurant with her younger sister, but soon faces the mercy of fate. The couple meets in a corner of Tokyo and falls in love. But what waits ahead of them. A "rondo" of fate, love, and history is about to begin.
Aoki Sho is a young man who lost his Japanese parents and was adopted by one of Korea's leading conglomerates. Growing up with his Korean name Kim Min Seok, he was once considered the heir, but was ousted and kicked out by the family after the death of his adoptive father.
Returning back to Japan for the first time in 23 years, Sho meets Kawase Momoko, who lost her father in an accident. Unaware of their shared past when they were children, the two find themselves drawn to each other. However, a series of unforeseen challenges begin to hit them.
Returning back to Japan for the first time in 23 years, Sho meets Kawase Momoko, who lost her father in an accident. Unaware of their shared past when they were children, the two find themselves drawn to each other. However, a series of unforeseen challenges begin to hit them.
