TV-Series
Description
Kaoru Kisaragi is a 20-year-old male idol and member of the group Anthos*, recognized by his blue image color and forget-me-not floral motif. Born on February 7 with blood type A, he stands 178 cm tall. His appearance features short dark blue hair, light blue eyes, and a mature style including patterned white jackets with blue accents. He wears a signature silver earring on his left ear, pierced after joining Anthos*.

Severe heart defects marked Kaoru's childhood, resulting in frequent hospitalizations. This illness prevented regular school attendance or peer friendships, leaving him primarily surrounded by adults. Witnessing other patients deteriorate or pass away fostered a deep concern for others in pain or sickness. His family doctor was later revealed as the adoptive father of fellow Anthos* member Lihito Tōdo. The gravity of his condition and his unexplained recovery—lacking the typical pain associated with the "flowering" process—strongly imply medical intervention via the HANA-Doll Project's implanted "flower seed" before his audition. His parents subsequently applied for him to join Amagiri Production's idol auditions, though he initially lacked interest in idols and felt inferior to other members.

Kaoru exhibits a gentle, serious, and polite demeanor, often described as knightly or princely. His hospital upbringing influenced his consistent use of formal language. He functions as Anthos*'s supportive "negative ion," calming tensions and working behind the scenes. Despite his kindness, he struggles with self-doubt about his mature appearance and idol capabilities. Over time, he develops a more playful and bold side, particularly around Lihito.

His talents include baking and drawing, hobbies cultivated during his solitary childhood. He shares his artwork officially and enjoys sweets but maintains a notably high metabolism. Vocally, he is a main vocalist with a praised high-tone singing voice, forming the "Beautiful Voice Team" with Lihito.

Relationships are central to Kaoru's development. He rooms with Mahiro Yuki, whom he considers a best friend and equal rival, though their bond strains as Kaoru faces memory loss and panic attacks linked to his health. He grows exceptionally close to Haruta Kiyose, whose contrasting personality complements his own; Haruta becomes his primary confidant regarding memory issues and disordered eating. Lihito shows protective concern, likely informed by his father's medical connection to Kaoru.

In later storylines, Kaoru experiences memory loss, eating disorders, and emotional instability, leading to withdrawal from commitments like a planned drama with Mahiro. His dormitory arrangements shift, and he emotionally distances himself from prior relationships, focusing solely on his idol work. These developments suggest unresolved trauma or side effects from the HANA-Doll Project's interventions.