Montyosho is a cute little alien creature who come from his home from the galaxy, he is Muki's best friend, and her sidekick too, and they work together to save the universe. He was first created by a mysterious girl who was first as a little limbless ball, along with his ears with rings around too. Later on, he grew, and evolved into his new appearance which he now has body, including his arms, and legs, even has a tail too with rings around as well. Monty has to leave his Galaxy home for his safety into the space ship knowing the mysterious darkness, and monsters is trying to takeover the Galaxy home, leaving the mysterious girl behind to keep her place saved as possible, but sadly when he was about to leave, he saw her stabbed in a chest by the darkness energy, leaving him shocked, and speechless, and the ship starts going off home automatically, and leaving far away from his place.
Later after Monty left his galaxy home, an asteroid hits the ship, and loses control, but however Monty accidentally pressed the eject button and leaving him lauched away from the ship, falling towards the planet called Earth.
At night, the other girl who's named Muki Koizami, looking out the window feeling lonely, she saw a glowing light falling towards the ground outside, so she comes out and checks it out in her pajamas, and sees a strange little alien creature who was given name by her, Montyosho, or Monty for short, when Monty wakes up, she looks at Muki looking close at him, then he starts looking around to know and see where is he at now. After Monty explains Muki about what happen, she was very curious about the darkness, and the monsters invading world, then Muki took Monty to her house, as Muki explains everything about Planet Earth, he suddenly feels refreshful, and smiles at her, and she smiles back, and now became such good friends.
Whenever she goes outside for a walk, stores, and school with her, she always keeps him safe and sound in her backpack, so they can alway be together like brother and sister. He sometimes like to tease Muki too, as she gets a bit annoyed, but in a good way too.
Then days after that, they noticed something trouble outside, and sees lots of enemies creatures around the city, Muki has no idea what's going on, and starts acting curious, Montyosho then suddenly gives her a serious look as he explains what's going on, then Muki nods, and starts to team up together to stop the creatures from attacking.
Days later, Montyosho goes on a journey with Muki, searching for the huge Mystical Cave, once they walk in, they saw nothing from upstairs, and sees a Mystical staff on a stone, once Muki starts picking it up off the stone, she now has an ability to perform magic abilities, and she smiles knowing she gets stronger to help everyone now, and Montyosho smiles as well, as he always happy to help Muki by her side.