Miku Hina​saki (雛咲 深紅 Hinasaki Miku) is the main protagonist in the series debut, Fatal Frame. Miku comes from a family susceptible to the paranormal, and, like others in her family, is able to utilize the Camera Obscura, a unique camera that has the ability to see the impossible and capture images of the other side. She and her brother, Mafuyu, were introduced as the first protagonists of the franchise when they became trapped as soon as they set foot in the haunted Himuro Mansion.

With her heightened paranormal abilities, she is again tasked with handling the Camera Obscura to shed light on the surrounding mysteries.

Miku was first introduced when she was 17 and in high school (college in American and European versions). After her father died and her mother tragically committed suicide, Miku has lived under the care of her older brother, Mafuyu, whom she is very close to. Like their mother and grandmother, Miku and Mafuyu have been gifted with a sixth sense, giving them the ability to see things normal people aren't able to. Miku's mother, after inheriting the Camera Obscura from her mother, suffered because of this sixth sense and went mad, ultimately hanging herself on a tree in their home's garden.