Jessica is hot-headed and acts like a tomboy, having a very crass manner of speaking. She has no interest in money or in the headship of the family and tends to act impulsively.

When it comes to talking about love, Jessica often gets flustered and can barely hide her feelings. Jessica is especially strong in her feelings towards Kanon and does everything she can to make him open up to her. When Jessica gets determined, there is nothing she cannot do.