Overview:
Living with a neurological condition that limits his ability to see colors, Yeon Woo has grown up in a world that looks very different from the one most people are used to seeing. Able to distinguish only different shades of gray, Yeon Woo knows the world is full of colors but has never seen them for himself. At least not until the day Yoo Han bursts into his world. As if by fate, Yeon Woo’s life changed forever the day he met Yoo Han.
Falling under the boy’s many charms, Yeon Woo is overwhelmed by the sudden surge of emotions he feels whenever Yoo Han is near. What’s even more surprising is the sudden surge of color that floods the world whenever Yoo Han enters the room. Could this be a sign that Yoo Han is her destiny? While Yeon Woo ponders her fate, her aunt Yi Rang is desperately searching for her sister, who disappeared years ago.
Joining his aunt on her quest, Yeon Woo enlists Yoo Han’s help, and together they search for his mother. As they delve deeper into the mystery surrounding her disappearance, an unexpected story begins to unfold. Will these fated young people succeed in solving the mystery of a missing mother while also unraveling the mysteries of their own hearts?
Characters and Voice Actors
Yoo Jun
Choi Yeon WooHur Hyun Jun
Go Yoo Han
Italian 
English (United States) 
English (UK)
I had to watch it a second time to understand the whole story. In my opinion, rewatching is exactly what you need to pick up on certain elements or passages that you missed for one reason or another; for example, in my case, it was the entire dialogue and its meaning, which was almost incomprehensible to me since this was one of my first BL series and I had to get used to the Korean language—with its sounds—and to the story. The story centers on two beings who, when together, are perfect, but who, on their own, are rendered incomplete and lonely by their neurological "defect." The protagonist struggles with the idea of turning into a monster, and this struggle leads him to take an extreme action. The other boy, on the other hand, hides his face to become like everyone else—that is, faceless, anonymous people, like ghosts. The interesting thing is that the two protagonists are part of a group with two other boys, only one of whom seems "normal," while the other is in constant contact with his deceased grandfather. It’s quite a bunch. Even though the masked boy is cute, his acting is poor—I found his voice to be almost completely flat. Anyway, this series deserves a 7.