𝓣𝓲𝓮𝓻𝓻𝓪/𝓔𝓪𝓻𝓽𝓱

Mars
Earth's best friend (which is why they're often shipped), with whom he spends most of his time playing cards and asteroid dodgeball. Mars later developed a dislike for Earth due to its discrimination against its moons and its perceived uniqueness. After Earth staged a battle between Mars and Venus for the right to be Earth's best friend, they became enemies. Mars was severely injured while trying to protect Earth from the moons. Mars later recovered, and Earth and the Moon returned from the asteroid belt. Earth explained to Venus and Mars that it had changed, Mars accepted Earth's apology, and now they are best friends again. When Earth, in search of Theia, left the solar system, Mars, along with the Moon and Saturn, went to look for her.

Status: Best friends

Phobos, Deimos
She called them asteroids, causing them to threaten to crash into Earth and destroy all life on it. Perhaps now they no longer harbor any hostility toward Earth; they also defended it from asteroid bombardment from satellites.

Status: Acquaintances, previously mutual hostility

Moon
The Moon is Earth's brother. According to Luna, they were once very close, but over time, due to Earthlings and their activities, Earth's character deteriorated, and Earth began to frequently use the Moon for protection from asteroids, generally treating it with disdain. Due to a feud with her satellites, she temporarily left to deescalate the conflict, but soon returned and helped her and Mercury avoid suicide and restore their morale. After the satellite revolution, their relationship improved, and Earth became much more caring and gentle toward the Moon. Then, Earth, in search of Theia, left the solar system, and the Moon, along with Mars and Saturn, went looking for him.

Status: Brothers/Family

Jupiter, Saturn
Friends. In Jupiter he sees a wise older brother.

Status: Friends

Titanium
Titan wanted to befriend Earth, but she humiliated him and all her satellites, saying they should know their place, which led to poor relations. In Part 3 of Satellite Revolution, Earth apologized to Titan and gave an inspiring speech. Titan accepted the apology and called for the attack to be called off, but Ganymede and Europa interrupted, proclaiming themselves leaders and announcing an attack. Titan, however, defended Earth from the asteroids.

Status: Friends, Former Sworn Enemies

Ganymede, Europa
They wanted to destroy Earth out of a thirst for revenge and stopped considering Titan their leader when it called off the attack. They later realized the error of their ways. And during the Solar System's Judgment, Earth and Ganymede smiled at each other. Relations are now likely neutral.

Status: Neutral, Former Sworn Enemies

Pluto
They were likely friends once, but after Earthlings stripped Pluto of its planetary status, they likely stopped communicating. Pluto, along with its moon Charon, stopped the Sputnik Revolution with their speech. However, now they have no animosity, and when Earth lost consciousness from the cold in the Kuiper Belt after hallucinating about Theia, Pluto, along with the other dwarf planets, tried to help.

Status: Good acquaintances

Theia
Mother

When Venus spoke her name, Earth fell into a trance, but Mars calmed her down. In Battle with Planet X - Part 3, Planet X named Theia, which was the correct answer to the Sun's question, after which Earth fell into a trance again and, having already entered the Kuiper Belt, lost consciousness. There, she met Proto and Theia, and they told her the story of her creation. Despite their brief encounter, Earth seemed to have become attached to her mother, so in future episodes, she occasionally mentioned her and Proto.

Status: Mother and son

Proto-Earth
Father

Earth saw him in a hallucination with Theia before entering the Kuiper Belt. When Earth entered its trance state, it fully saw Proto-Earth, where he and Theia recounted the story of its creation. Despite their brief encounter, Earth seemed to have developed a strong attachment to its father, so in future episodes, he occasionally reminisced about him and Theia.

Status: Father and son

Titania
During the Satellite Revolution, Titania was one of the few satellites who opposed the attack on Earth. After Earth's apology, relations between them improved. In the episode "Solar System, But Only Satellites - Part 2," Titania told Luna that she was glad that Earth had returned safely to its orbit and asked Luna to continue to protect it. Later, during their first face-to-face meeting, Earth explained to Titania the folly of replacing satellites with planets (as many satellites would then collide with each other, be ejected from the solar system, or fall into the Sun), leading Titania to decide to redistribute the satellites, leaving in the inner solar system only those satellites willing to harbor life. When Earth learned from Luna that Titania had convinced the Sun to replace the planets with satellites and asked why she had done so, she became angry and claimed it was because of her relationship with Uranus, which neglected its satellites, and departed, declaring to Earth that the conversation was over. Despite this not entirely pleasant moment, in the next episode, she agreed to Earth's request to talk to Uranus in the Asteroid Belt.

Status: Unknown (probably friends), former enemies

Venus
They were best friends after Mars and the Moon told Earth to change its attitude toward Venus. However, they became enemies again after Earth staged a battle between them for the right to be called her best friend. Previously, he mostly maintained a friendly relationship, but sometimes they quarreled over Earth's "stupidity" and rash actions. He was wounded while trying to stop the satellite revolution, or more precisely, the satellites' plan to eliminate life on Earth. After the satellite revolution, Earth returned to the inner solar system and decided to make peace with Venus and Mars. Mars became a friend again, but Venus was in no hurry to become one, returning to her former nature, although she seemed to show a little more concern for her friends.

Status: Best friends

Mercury
Previously, they did not interact with each other much, but after an attempt to crash into the Sun, Mercury provided Earth with self-improvement therapy, helping it become better.

Status: Friends

Sun
He's forced to maintain a good relationship with it, lest it get angry and devour him. He tried to crash into the Sun. He's very afraid of the Sun turning into a red giant.

Status: Mixed, Improving, Former Enemies

Diona
She didn't want to destroy Earth, but was forced to join the revolution. After Earth's arrival, she was inspired by her speech and no longer harbors any animosity toward her.

Status: Neutral, Former Enemies

A blue-light blue ball with an atmosphere and green-beige-white continents on the surface.

In the old design, all continents except the North Pole, Antarctica, and a small area of ​​glaciers in North America were bright green.

Earth has a truly multifaceted character. Previously, he was brash, arrogant, and selfish, putting himself above others, trying to hide his inner self-doubt, the intense stress and pain caused by Earthlings, and was prone to mental instability. But later, thanks to the Moon and Mercury, he improved and became kind, caring, and determined, ready to do anything to achieve his goals, although a small amount of impudence remains. He sincerely loves his friends, can be courageous, and even risk himself if necessary. In future episodes, you can see that he has also become wiser. He is an extrovert.

Previously, whenever Theia was mentioned, he would be overcome with panic, strange feelings and hallucinations, until after the Earth Origin Story arc, he stopped experiencing such problems.

Ceres
Sun (formerly)
Titania (formerly)
Planet X (formerly)
Pluto (victim of bullying, previously)
Titan (formerly)
Ganymede (formerly)
Europe (formerly)
Jupiter (formerly)
Uranus (formerly)
Other satellites (previously)
Venus (earlier, during a quarrel)
Mars (earlier, during a quarrel)
Moon (earlier, during a quarrel)

Luna (brother)
Astrochel
Computer (possibly)
Mercury
Venus
Mars (best friend)
Teia (mother)
Proto-Earth (father)
Jupiter
Saturn
Uranus
Neptune
Phobos
Deimos
Titanium
Io
Callisto
Pluto
Charon
Other Dwarf Planets
Metis
Titania
Other satellites
Sun
OGLE-2016-BLG-1928
Planet X (possibly)

When he is abandoned, there is a long loneliness as earthlings (in particular, Astromen) try to terraform Mars

My Earthlings, friends

Losing all loved ones, hurting or offending someone, turning the Sun into a red giant (probably earlier)

Play cards and asteroid dodgeball with rocky planets

Normal (previously unstable, hallucinations)
Narcissistic injury
PRL
Autophobia

Moon

Gaia (Greek name)
Terra (himself, birth name, Latin name) (Neptune)
Chel (Mars)
Dude (Mars)
Weirdo (Venus)
Idiot (Venus)
The Fool (Venus)
Golden Child (Ganymede, Titan, Titania)
Bully (Titan)
This Ungrateful Earth (Sun)
Lady Earth (OGLE-2016-BLG-1928, Mercury, Callisto)
Mr. Earth (Titan)
Friend (Uranus, Weak Nuclear Force, Venus, Charon)
Beloved Child (Titania)
My Rogue Sun (Sun)