TV-Series
Description
Serika Kurusugawa is the eldest daughter of the wealthy and influential Kurusugawa family, whose conglomerate includes Kurusugawa Electronics—creator of robots like Multi and Serio. Her status earns her the respectful address "ojō-sama" from household staff, and she commutes daily to school via limousine with her butler, Sebastian. Despite this privilege, she cultivates a distinct identity centered on occult fascination, founding and solely operating her school's Occult Research Club. There, she practices witchcraft and studies tarot cards and black magic rituals, often gathering spell materials like lizard tails—a task that once involved Hiroyuki Fujita's assistance.

Physically, Serika has long, straight dark blue-violet hair with spiky bangs, blue eyes, and a pale complexion. She stands 159 cm tall with measurements of 84-54-87 cm. She typically wears her school sailor uniform with loafers, ankle socks, and a ribbon tie, frequently accessorizing with a witch hat and cape to emphasize her occult pursuits.

Personality-wise, she is exceptionally reserved, soft-spoken, and taciturn. Her near-inaudible speech often requires Hiroyuki to repeat her words for clarity. She displays an absent-minded demeanor, frequently seeming dazed or lost in thought, which obscures her internal processes from others. This aloofness and her occult interests cement her eccentric reputation among peers, though she harbors no malice.

She has a younger sister, Ayaka Kurusugawa, who shares her appearance but contrasts sharply in personality—outgoing, confident, and skilled in martial arts at a different school. Despite differing interests, the sisters maintain a positive relationship.

Serika's familial authority surfaces in "Remember My Memories" when she overrules security protocols to grant Hiroyuki and his friends after-hours access to a Kurusugawa-owned amusement park. This act demonstrates her influence within the conglomerate. Her dedication to occult activities and this display of power remain her primary narrative contributions across all media, with no significant development or backstory expansion in spin-offs or extensions beyond these traits.