Yue Imasaka features as a central heroine in the series' first installment, sharing a deep-rooted childhood bond with Tomoya Mikami and Ayaka Hizuki that formed an inseparable trio during their middle school years. Her vibrant personality blends liveliness, innocence, and frequent clumsiness. Though harboring romantic feelings for Tomoya, she initially hesitates to act on them.

After Ayaka Hizuki's tragic death in a youth traffic accident, Yue confronts Tomoya's emotional withdrawal and harsh treatment of others—including herself—yet remains a steadfast support during his grief. Her resilience and empathy shine through this shared loss.

In future timelines, she graduates from Sumisora Academy and pursues nursing at Fujikawa Nursing School, demonstrating her dedication to caregiving. Her relationship with Tomoya deepens, with subtle hints of engagement emerging through others referencing her potential adoption of the Mikami surname.

Yue reappears in later series entries through cameos. She frequents the Cubic Cafe in *Omoide ni Kawaru Kimi: Memories Off*, interacting with newer characters. Her role extends to advising Shougo on relationship struggles in the *Memories Off 3.5: Omoide no Kanata e* OVA, where she draws from personal experience to guide others.

Official updates confirm her marriage to Tomoya Mikami and the birth of their child. She continues her nursing career actively, notably treating patients during an infectious disease outbreak, balancing family life with unwavering professional commitment.