Unlike her twin, Mirajane, who becomes a loving and caring person, Chikaku becomes a more vain and arrogant jerk, seeing herself as strong. She always views her twin and her siblings as very weak, always bullying her own twin for her kind personality and telling her twin how she makes her look like a joke. Her arrogant personality would eventually lead to getting herself infected by a spider-like parasite and succumbing to wounds from a lizgon attack when trying to collect its blood.