|Also Known As||Jessie (at school)|
Milady (by Kanon)
|First Appearance||Legend of the Golden Witch|
|Portrayed By||Marina Inoue|
Jessica suffers from asthma and occasionally has asthma attacks when she gets too excited. In Turn of the Golden Witch, it is revealed that Jessica secretly practices guitar and plays in a rock band at school.
Jessica appears as a pretty young girl with blond hair tied into a ponytail. She wears a dark blue jacket over a white shirt and red tie combined with a red skirt, knee-length socks and black shoes. The One-Winged Eagle is imprinted on her left sleeve.
Jessica has a very hot-headed personality. 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.
Legend of the Golden Witch
Jessica becomes one of the last survivors and dies on the tenth twilight.
Turn of the Golden Witch
At Shannon's suggestion, Jessica has Kanon pose as her boyfriend for the school's culture festival. After the first twilight, Jessica accuses the 19th guest Beatrice of being the culprit. After heading to the VIP room and finding nothing, she heads back to her own room with Kanon. There, Beatrice attacks both of them and aims to make them sacrifices for the second twilight.
Jessica soon bears witness to Kanon summoning a magic sword and fighting Goats and the Stakes. Jessica protects Kanon when Asmodeus tries to stab him and dies soon after.
Banquet of the Golden Witch
During a scuffle with Eva, Jessica is blinded when Eva's gun fires off. While resting in the servant's room, EVA-Beatrice murders Nanjo outside and plans to do the same to Jessica. Beatrice soon appears, summoning Kanon's ghost to guide Jessica to the parlor and hide in the curtains.
Umineko no Naku Koro ni Tsubasa
In the latter, she summons the demons of love again to help Jessica mend her friendship with her friend, later obtaining a book of spells to try and earn Kanon's love.
Umineko no Naku Koro ni Hane
"Jessica and the Killer Electric Fan" features Jessica writing a play for a festival and getting sucked into it alongside Battler and Shannon.
- According to Krauss, Jessica is worth ten billion yen.