Katou Karen
加藤 可憐
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| Katou Karen加藤 可憐O | |
| Measurements | Height: 152cm, Bust-Waist-Hips: 88-63-82cm |
| Birthday | 22 February |
| Hair | Brown, Spiky Bangs, Straight, Twin Tails |
| Eyes | Brown, Tareme |
| Body | Big Breasts, Fang, Pale, Slim, Teen |
| Clothes | Hoodie, Ribbon Hair Tie |
| Personality | Carefree, Energetic, Watashi |
| Role | Full Sister, Younger Sister |
| Visual novels | Side character - Summer Days Makes an appearance - Cross Days Side character - Shiny Days Main character - Island Days |
| Voiced by | Gunta |
DescriptionKaren Katou is the playful younger sister of Otome Katou. Unlike her older sibling, Karen is cheerful and unabashed who is just as playfully teasing as she is concerned of Otome. She is good friends with Kazuha and Futaba Nijou and looks up to Makoto as her mentor and role model. | |