Eris

Eris is a dwarf planet in the Solar System. She is Pluto 's sister, though they're not too similar physically. She is really nice, and is always willing to make new friends.

Personality
Eris is a kind planet, and she's also very liked in the Solar System. Pluto and her are siblings, and ussually hang out with each other, and sometimes with Haumea. She even invited Mercury, and became friends whith him. However, she is kinda annoyed by Sedna 's hyper personality, but she likes that Sedna is always happy. But if you make Eris angry, for example, teasing Pluto, or her moon Dysnomia, she gets mad, and ends up in a huge arguement. She always sees herself with shame after that.

Appearance
Eris is a white dwarf planet, with some darker areas. She is described as the prettiest dwarf planet.