Raven

Raven is the main antagonist of the JAFT series. She is Alessia's older sister and an immortal killing machine. She is a mighty water mage and robot designer. She keeps making plans to rule the Humansion but Jeremy and his friends have always thwarted them.

Basics
Raven has black, curly hair, and wears a purple shirt with a white skull on it. She looks similar to Alessia, and it's implied that the two never really got along in their primes. What distinguishes Raven, however, is the fact that she is immortal. She still has no idea why she can outlast death, even though Jeremy kills her twice in the series so far.

Abilities
Raven is a powerful Water mage, whose physical and magic strength exceed mortal expectations.

Dark Raven
In JAFT 2, Raven transforms into Dark Raven while Jeremy and his friends fight her in the Colossus. The storage of dark matter in the head of the Colossus was the catalyst for Raven's sudden increase in power. Dark Raven is immune to every status defect in existence, except for curses. Alessia's Demonic Dark Arrows can curse Dark Raven and prevent her from using her energy-based attacks. Once Raven claims she "cannot be defeated", Aesir and Lilac appear and use Holy Light to revert Raven back to her original state. After that, they shoot Raven into the vacuum of space, where she shortly falls into a wormhole.

Trivia

 * Raven is immortal and often pretends to die whenever Jeremy fights her.
 * Raven ages much slower than other beings due to her immortality.
 * Raven is an intrepid robotics engineer.
 * So far, Raven has "died" twice and has always lived.
 * She is a secret playable character in JAFT and obtained through that game's debug menu.