Sadeena (サディナ) is a Sakamata therianthrope and companion of the Shield Hero. She's also one of the top fighters of Rock Valley. She acts lazily to prevent others from getting a hold of her, but underneath that, she easily obsesses over things. To summarize, she’s someone you can’t let your guard down around. However, she is also quite caring and responsible when she has to be and is described as everyone's "Onee-san." Raphtalia, Filo, villagers in Rock Valley, and the people in the other village hold great respect for her, although Naofumi can only see her as a loose person who likes to play around.