Seeing Blue

Trama

Ruriko Aoyama, a high school sophomore, has lived with a prominent blue birthmark on her face, striving to minimize its impact and avoid special treatment from others. Her life takes an unexpected turn when she discovers a notebook belonging to her new homeroom teacher, Kanda. The notebook contains detailed observations about her classmates, including their distinguishing physical features. However, Ruriko's own name is conspicuously blank. Upon confronting Kanda, she learns that he suffers from prosopagnosia, a condition that impairs his ability to recognize and differentiate human faces.