The second life is what Huimin has a memory of, where he and Iheon are just friends. And is also the lifetime where Iheon first reincarnated (chapter 54).
And then their third life is the present (where the story starts) and is similar to "Silenced" but Huimin thought he reincarnated inside the where infact, he lost his memory and remember the past two lifetime. And Iheon 2nd reincarnation
Basically, the book "Silenced" is the first life.
The second life is what Huimin has a memory of, where he and Iheon are just friends. And is also the lifetime where Iheon first reincarnated (chapter 54).
And then their third life is the present (where the story starts) and is similar to "Silenced" but Huimin thought he reincarnated inside the where infact, he lost his memory and remember the past two lifetime. And Iheon 2nd reincarnation