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|Anime||The Invincible Love Me Tear☆|
Ken Mayuzumi (ケン・マユズミ) is a character in the Aikatsu Friends! series. His main role is a hair and makeup artist, with choreographer being his secondary role, and his office is in Production Room No. 3 of Star Harmony Academy.
Ken has curly blue hair cut to be longer on the right of the head. His bangs have a streak of dark yellow through them, and a small curled strands sticking out from the side. He has rounded topaz eyes and wears a red earring.
Ken (ケン) that is of Scottish origin means "handsome".
Mayuzumi (黛) refers to the color blue-black, which is in reference to Ken's hair color.
- He shares his voice actor with Shun Yotsuba from the original Aikatsu! Series and Hikaru Moroboshi from the Aikatsu Stars! Series.
- He is the first known Hair Stylist and Makeup Artist in the entire Aikatsu! Series.
- Many fans compare Ken with Noriaki Kakyōin of JoJo's Bizarre Adventure due to both characters sharing the same voice actor. 
- Main article: Ken Mayuzumi/Image gallery
|V • T • E List of Aikatsu Friends! Characters|
|Star Harmony Academy||Aine Yūki • Mio Minato • Maika Chōno • Ema Hinata • Sakuya Shirayuri • Kaguya Shirayuri|
|Love Me Tear||Karen Kamishiro • Mirai Asuka|
|Season Two||Hibiki Tenshō • Alicia Charlotte • Wakaba Harukaze|
|Star Harmony Production Office Three||Tamaki Enjōji • Ken Mayuzumi • Chiharu Hachiya|
|Yūki Family||Masamune Yūki • Nene Yūki • Suzune Yūki • Kazune Yūki • Momone Yūki • Yoshitsune Yūki • Penne|
|Minato Family||Osamu Minato • Reiko Minato|
|Chōno Family||Kenshirō Chōno • Mai Chōno • Maito Chōno|
|Charlotte Family||Leo Charlotte • Sophie Charlotte • Charles Charlotte|
|Artificial Intelligence||Coco (Aikatsu! Navi) • Nana (iTube)|
|Entertainment Industry||Mushirō Haryū (manager) • Noa Shimendō (top designer) • Zack Balan (director) • Natsu (assistant) • Hiro (assistant) • Mana (assistant)|
|Baby Pirates||Marin Manami • Rinna Shinkai|
|Others||List of Aine Yūki's Friends • Mascot Characters|