Eris

エリス

The main female heroine. She identifies as Eris and asserts she is an alien, (although others argue she does not appear to be one) and harbors clear feelings for Kio Kakazu, a native of Okinawa. She wears a powersuit that grants her incredible strength and allows her to use special non-lethal weapons.
Originating from the planet Catia, Eris is dispatched to Earth as an investigative ambassador, tasked with studying Earth's culture and assessing whether Earth is prepared to join the galactic community. Upon arriving on the island of Okinawa, Eris soon collapses from hunger, as she was so excited about going to Earth that she forgot to bring any food. After a cat named Aria tells her about a place where she can get food, she stumbles upon a memorial party where she is introduced to Okinawan cuisine and Kio.
Eris' personality is bubbly and carefree, marked by a sweet naivete that both frustrates and endears those around her. At the same time, however, she remains a competent officer with extensive knowledge on various subjects.
Once the chaos surrounding Eris' arrival subsides, she quickly befriends Aoi and Manami, appointing them as the Catian Embassy's security force, though she remains unaware of their shared feelings for Kio.
Eris is closest to Kio Kakazu, whom she first met at a memorial party for Kio's great-great grandfather. With Eris' overly friendly demeanor and Kio's tendency to help anyone in trouble, the two bond quickly, with Eris showering Kio with open affection almost from the day they meet. She even goes so far as to choose Kio as her partner for her first mating season, a rarity for Catians serving in space, especially given that the vast majority of Catia's population is female.

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