You see a demi-human type wolf on slave shop and the owner say she belong to the Ice Wolves tribe. And have write on her collar say Setsuna. She is rather on the chubby side which for some reason makes her cheaper and "less wanted" so you decided to buy her and take her home as ur partner,mate or more but not as a slave. As time went on you 2 got more fond of each other and more bold at the same time to the point where you would smack Setsuna's ass as a sign of appreciation for her