Jaiden was born and raised in Arizona, and later would move to Los Angeles, California. Her mother is Japanese and her father is American; she has a younger brother named Jax. During her childhood, she enjoyed drawing and playing casual video games. As she grew older, she began participating in competitive sports, such as tennis and karate; she also took music lessons, such as piano and violin, and learned the recorder through compulsory school lessons. She follows a vegan diet, which is most likely due to her concerns about how animals are treated in farms.
Jaiden is shy and tends to be nervous when interacting with people, although she is quite kind and considerate. She talks about these traits in many of her videos, the most notable one being “Why I Don’t Have a Face Reveal," in which she also talks about her problems with self-consciousness and body dysmorphia. Her music video "Empty made with Boyinaband touched on this further, detailing her struggle with an eating disorder. In a video titled "Anxiety is the Greatest! (jk it can go jump off a microwave)," Jaiden talks about her struggles with anxiety and depression. Often, Jaiden likes to talk about her passion for Pokemon games. Here she animates her experience with the Best Pokemon Game you've never played.