Tumtuvak can be very aggressive to strangers. Her handler knows that her Dire blood affects her personality, making her extremely territorial even with other females. She usually roams around the camp, looking for prey or intruders. Her handler has been forced to chain her once, as she tried to devour another rider's tokota that crossed her territory's borders. Before she was tamed, the TCA tought the best choice was to secure her in the same designed area whith Fenrir, so she could be closely monitorated. However, this aggressive Dire female has got a great sense of respect for who deserves it. Obtaining her respect tho is very hard, her handler spent entire months in the cold northern Tartok mountains, her home, to train her and gain her respect and consideration: now they are extremely attached, and both give great respect to each other. In her eyes a strong spirit can be seen, Fenrir's shadow, her ancestor.