Senna is a beastwoman and a former resident of Howling Village. She appears to be a very nervous but kind young woman, although she can be assertive at times.
Born and raised in the mountain settlement known as Howling Village, Senna is the daughter of the village chief, and while still living in her native land she used to mine ores and manufacture various goods that would serve as trade materials that would be exchanged for food, which was difficult to grow in the mountainous area.
However, Howling Village's existing trade relations sour and, being in desperate need of a new source of food, a trade mission is sent to the new settlement that was formed in the east - Hiraku's Village.
The trade mission is successful and her father encourages Senna and a handful of other beastfolk to settle down in the newly formed Taiju Village, where she would serve as representative of the Beastman that had settled there and also further trade relations between the two villages.