Chronica appears to be the senior of two independent Plants dispatched from Earth in response to the Gunsmoke homing beacon. She and Domina arrive after Knives has already been navigating the Arc for a considerable period. It seems they have encountered rogue Independents before, but none on the scale of Knives.
Chronica is tall, with long blonde hair, and she wears a light-colored space outfit. She is depicted as calm and rather intelligent. Chronica refuses to forgive Knives for incorporating Domina into his mass collective, thereby erasing her individuality.
She is one of several forces active during the final battle in the manga.
(Source: TRIGUN Wiki)









