- Voice Actor (CV)
- Kaya Okuno
- Gender
- Female
- Role
- Supporting
- Identity
- A student enrolled in the Martial Arts department of the floating academy city 'Little Garden,' who also shines as a rising idol singer and is the biological younger sister of protagonist Hayato Kisaragi.
Personality
brother-obsessed
mischievously charming
gentle yet resilient
cheerful and spirited
Having spent an extended period recuperating at 'Little Garden' due to illness, Karen discovered an extraordinary vocal gift that launched her career as an idol, earning her a devoted fanbase within the academy. Her attachment to her brother Hayato borders on obsession—she keeps a sharp, competitive eye on any girl who gets close to him, revealing a playfully possessive streak beneath her cheerful exterior. Beyond supporting him through uncannily accurate divination, she eventually awakens as a Hyakubusoushi wielder who commands card-type armaments, proving there is far more to her than her idol persona suggests.