Kotori Shirakawa shines as Kazami Academy’s third-year school idol, celebrated for her angelic voice, academic prowess, and gentle nature. Though adored for her approachable charm, she privately battles the weight of upholding her flawless image. Her signature hat, inspired by her parents’ encouragement to join the choir, sparks a passion for collecting unique headwear. She savors sweets, cherry blossoms, and orange juice, yet shies from bustling crowds, avoids dogs, and recoils at spicy flavors. Adopted into the Shirakawa family, Kotori’s biological parents, Chizuru and Naoyuki, remain distant figures, while her adoptive parents, Eiko and Kouji, anchor her life. Her adoptive sister Koyomi teaches Junichi Asakura, whose genuine treatment of Kotori sparks a bond deepening in *D.C.I.F. ~Da Capo~ Innocent Finale*. A planned confession at a school pageant unravels when Junichi’s sister Nemu collapses, thrusting Kotori into uncovering her adoption’s hidden truths and the magical sakura tree’s gift of mind-reading—a power she deems invasive, crumbling her resolve as it wanes. These revelations culminate in her marriage to Junichi and the birth of their daughter, Hina. In *Kotori Love Ex P*, she nurtures children as a nursery teacher under her maiden name, her marriage’s stability shadowed by subtle hints of Junichi’s wandering attention, unnoticed by her. *D.C. Dream X'mas* weaves her through alternate realities, where she navigates time’s frayed edges while engaging future generations. Warm yet vulnerable, Kotori greets confidants with a playful “chiwassu,” masking her reservations. She reluctantly joins events like beauty contests to please others, leaning on bandmates Kanako Saeki and Tomoko Morikawa for solace. Her telepathy strains trust with male peers, amplifying her isolation. Her evolution from hesitant idol to self-assured woman unfolds across media. In *D.C.if: Da Capo if*, she weds Junichi following Nemu’s departure, confronting societal pressures and unresolved ties to her past. Claret hair styled in a hime cut frames her blue eyes, while berets, sailor uniforms, and thigh-high stockings define her youthful silhouette. Standing 157 cm with a slender 41 kg frame and measurements of 83-55-84, Kotori embodies both ethereal grace and mortal fragility. As a bridge between magic and reality, her journey intertwines identity, kinship, and love, anchoring the franchise’s heart.