Cobalt was a Cthulhu soldier, pilot of the mecha Delos Theta and Sepia&#039;s lover, killed by Iczer-1 and Nagisa. Delos Theta&#039;s only power is emitting flashes that cause large explosions.

Nagisa is a schoolgirl with schoolgirl tendencies, waking up late, rushing off to school and meeting up with friends upon the way. One morning Nagisa comes across a woman dressed in a strange uniform who seems to stare at her, unnerving Nagisa. Later that day, whilst staring out the window, Nagisa becomes aware of a ball bouncing by itself which flings itself towards her window seat, shattering the glass yet not harming her... Turning back to the front she finds a gaping mouth bristling with teeth inches from her face and no-one else about. She screams and the world returns to normal with her standing and the centre of curiosity of her class... why did she scream? 

She works for Aoni Production.  She is a Japanese voice actress who has played numerous guest roles throughout the Sailor Moon anime. Her other anime roles include Wonder Maria in Bikkuriman, Chaozu in Dragon Ball and Yopopo in Konjiki no Gash Bell!!.