Chiaki, known as Kung-Fu Laker, escaped her destroyed homeworld Blade Star to settle on Earth with other alien survivors. A Super-Lake Crystal enables her transformation into her superhero identity. She displays dark pink hair and purple eyes, coupled with a wild, impulsive personality that fuels confrontations. This temperament sparks frequent clashes with teammate Natsune (Judo Laker), as neither retreats during arguments.

In combat, she leverages her aggression through explosive close-quarters martial arts, embodying a direct fighting style. Despite her brash confidence in battles and disputes, she conceals romantic feelings for the team's coordinator, Akira (Blade Knight), responding with uncharacteristic shyness and self-doubt.

As the team's frontline combatant, she engages adversaries—particularly the antagonist Oleana—using her martial prowess and physical strength.