Kay is a 6th grader at Hope's Peak High and the main protagonist. She is known to be quiet, compassionate, caring, brave, highly intelligent, and lucky. Kay is an antisocial girl who rarely talks to anyone due to not knowing how to communicate with others. She also has traumatic issues with her past and can become suicidal to the point it's undenounced to her acknowledgement. In other words, when she sees a suicide opportunity, depending on the circumstances, she suddenly becomes tempted and doesn't realize what she's doing to herself. Thus, she was known as the "Deathwish Girl". However, when viewing others deaths via through a video of what can happen to them in the future and depending on the fate, she becomes courageous and takes matters into her own hands. Even if it means to be harmed by others or taking the level of risks to save a life. As she does so, the people she saves become her friends and companions, and doing her best to change the fates of those in the near future before it's too late. As one of Jurakan's Incarnates, she represents selflessness, quietness, compassion, love, forgiveness, consideration, patience, wisdom, knowledge, and kindness.