|Japanese name:||美嶋 紅音|
Her gun has the special property of having unlimited ammunition and doesn't need reloading. In addition to having Natsuru as the first male to establish friendship with her, Akane eventually begins to harbor romantic feelings for him, becoming jealous and easily irritable when he talks about another girl (most if not all of the time being Kaede) in front of her or when another girl takes an interest in him (whether that interest is romantic in nature or not). Despite often responding with indifference, however, Natsuru does later on tell her that if Kaede were never on his mind, Akane (her normal form) would have been his type of girl. As a Kämpfer, the messenger assigned to Akane by the Moderators is Black Seppuku Rabbit, a plush toy that is part of the Entrails Animals series of stuffed toys.
Voiced by: Yui Horie