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"When you arrive on a new planet, first stop is food." Along with the galaxy dragon Arco, they live a life of travelling around the galaxy selling treasure they stole. But now, in search of the one treasure she's never seen, her mother... She and Arco left on an adventure. She's always hungry.

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"I'm hungry." An incredibly rare and valuable dragon, the only one of her kind in the galaxy. She was born from a black hole so she's always hungry. Her normal form is that of a small dragon, but after she eats she changes into her human form. She promised to eat Marco when she's most delicious. Sh... read more

"I'm hungry." An incredibly rare and valuable dragon, the only one of her kind in the galaxy. She was born from a black hole so she's always hungry. Her normal form is that of a small dragon, but after she eats she changes into her human form. She promised to eat Marco when she's most delicious. She has a cavity.

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"I will take recompense for my slain brethren." A girl from a destroyed planet. She vows to take revenge on the one who destroyed her planet. With her legendary sword Coelacanth in hand, she's going on a rampage. Since she was born on a planet of sand, she longs for places of water.

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"I'm still half-fledged." The daughter of the being that's trying to take over the galaxy, Astaroth. Her range of emotions is very narrow. She's trying to get the Lizard Stone that Marco stole.

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Astarot is an antagonist in Marco and The Galaxy Dragon. His aim is to control the galaxy and sow destruction.

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A skeleton alien at Astarot's side.

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"Vroooom...!!!" Marco's ride. Once it gains power, it becomes able to speak.

A sort of pig that accompanies and helps Marco. Intended to serve her emergency meal, but has more of a pet or mascot role.

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"Now that you've come here, whatever happens in this town can no longer be considered strange." A member of the student council. She serves the Isezaki family. Tera's right hand. Book lover.

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"Gold Cord is in a terrible crisis right now!!!" The mayor of Gold Cord. Facing galactic invasions head on, she makes innovative proposals that nobody goes along with. That's why she throws a tantrum and cries at the most critical moments.

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"I bet having nothing but good memories must be hard sometimes." A member of the student council and good in a fight. She's working to protect her home, Gold Cord.

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"Don't worry. The first one's a free tasting. If you like it you can come back, right?" Sakurako's big sister who works in a coffee shop. The curry is famous... But nobody will tell you what's in it.

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"All you need is to be ready, and the mental fortitude to deal with having your body completely broken into smithereens." A dentist. Depending on the pay, she'll do any procedure. Because of her illegal procedures she's being chased across the galaxy. She's currently continuing her work in secret ... read more

"All you need is to be ready, and the mental fortitude to deal with having your body completely broken into smithereens." A dentist. Depending on the pay, she'll do any procedure. Because of her illegal procedures she's being chased across the galaxy. She's currently continuing her work in secret on earth.

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"Heyo! So you're the one. Marky, huh. Nice to meet you." Tera Isezaki's younger sister. She supports the Isezaki family finances using the foreign stock exchange. She's the minister of finance in the Isezaki family.

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"So like, because of the war lots of places are gone! So I'm glad we have this school!" Because of the war, many places around the world were lost. Even in a world like that, she gets by working part-time at a soba restaurant every day. She's friends with Marco.

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"There's nothing I haven't been able to afford!" The student council president. Her family owns Isezaki Heavy Industries. She invested a lot of money into the Lizard Stone Marco has just because she wants it.