|Game Debut||Danball Senki W (PSP)|
|Anime Debut||Episode 04 (W)|
|Appears in||Anime, Game|
|Voice Actor||Eri Kitamura|
|Relatives|| Owen Kaios (father)|
|Achievement(s)|| Angra Texas Finalist|
Artemis 2051 Finalist
Jessica Kaios (ジェシカ・カイオス Jessica Kaiosu) is one of the main supportkng characters in Danball Senki W.
Jessica has pale skin, big blue eyes and some freckles on her cheeks. She has yellow hair tied in low pigtails. She usually wears a green collar shirt, brown jacket with black stripes, black cowgirl hat, black pants and white cowgirl boots.
In WARS scetches she is seen wearing a black and green jumpsuit and her hair is tied in loose ponytail.
She is a very confident person which leads to how she is with her LBX battling skills. She is also very observant along with a photographic memory which is shown through the anime in general.
Jessica challenges Ban to test his skill to see if he was real or not and prove that he is strong enough to be here. Soon she take them to NICS and reveals to be the daughter of the NICS President. After that they run into an LBX rampage not long after that. Jessica along with Hiro go and shut down the computer. But suddenly they are being battled by Kousuke Kamiya who was shown as a slave player. They beat him and deactivate the virus but when they did, they activated a trap causing the train to move faster. After all that, Kaidou Jin saves them with their LBX.
Later, she is forced into a tournament by Otacross which Hiro and Ran were entered in too. Her coach who was chosen by Otacross was Jin and really she felt she didn't need to be coached, but Jin wanted to show her that even if she is a good LBX player, she needs to learn better skills so she can do things better in her future battles. But Jessica doesn't want to listen till Jin gives a giant hammer like weapon for her LBX during her match which seemed really complicated at first but she prevailed through the match and realized Jin was right all along so she ended up appreciating the things Jin was coaching her in general.
- She can use her photographic memory to her battle advantages after seeing something once.
- Her LBX is Jeanne D which resembles her as a cowgirl.