
While on a field trip to the Tokyo Tower, three middle school girls suddenly find themselves in another world and must save its princess to return home.

Durning a field trip at the Tokyo Tower, three girls from three different schools, are transported to a medieval like land named Cephiro. The girls introduces themselves, Hikaru, Umi and Fuu, who are all in the 8th grade, reguardless how they look. They are greeted by a wizard named Clef. Clef explains that their high ruler, Princess Emeraude was imprisoned by one of her guards name Zagat, high above the skies of Cephiro. He then explains that Princess Emeraude made it clear about the Legendary Magic Knights, who are destined to save their world.

Guided by Clef's words stuck in their head, they reach the Silent Forrest. They are dropped off by the big griffin like bird, and wonders how the hell are they getting into the mansion like place, when it's surrounded by a wall with no doors. Fuu suggests on knocking. Umi is very skeptical, but when Hikaru starts to knock on the wall, a door opens. They try to call for someone, but no one is greeting them. They have little arguments on not being rude, and decide to enter without permission. They do not know it, but a monster crawling in the ground, manages to get in while they walk in. The door shuts, and they enter the mansion. They wonder around a bit, until they hear noise coming from a room. It turns out to be a library, and they see mess coming from someone behind the chair. They ask if the person is Presea, but the person turns around. It turns out that the ""person"" is a cute Pikachu/Hello Jitty cross cover called Mokona.

While travelling to Eterna Lake, they run into a guy named Ferrio who saves them from a monster. Ferrio then offer them to be their guide to get out of the Silence forest. They say no, and try to lose him, but he still follow them. The girls then discuss about him being their guide, but they can't trust him, due to the fact he still a stranger. They let him be their guide and uses food as payment since they have no money. We then find out that Ferrio was an entertainer, and Princess Emeraude saved his life when they thought he stole in the castle. Princess Emeraude then told the guards that it was a gift (the egg looking treasure) to him. That's why he is on the quest to save Princess Emeraude. They then take rest (thanks to Mokona) in a huge room/tent. Hikaru wants to give Ferrio food, who is outside, but Fuu tells her she'll do it. The reason is, Hikaru is too kind, and might invite him in to stay with them.

The girls run into what seems like to be a deserted village. They are captured in a net, and find out that the villagers were hiding from monsters, corrupting their land. A monster then shows up, forcing the villagers to go back into hiding. They get the monster's attention by hitting it after going after a little girl. The monster attack them (setting them free), and with Hikaru's magic, she defeats it. Umi is happy, and suggests to hurry to Eterna to get Escudo, but suddenly falls to the ground. Hikaru runs to Umi, only to be challege by Alcyone, who was the one who injured Umi with her Ice Arrows. Alcyone is confident on beating them, but Hikaru's anger only makes her stronger. In the midst of fighting, Umi slowly wakes up, and sees Hikaru battling for her sake. Umi turns to Mokona and wishes for magic, where Clef's voice, proceeds to give her (since she is ready for it.) Umi stands up, and casts a ""Water Dragon"" spell that blasts Alcyone, who retreats. Umi once again falls d

Alcyone begs Zagato for another chance, to kill the Magic Knights, after saying she has a plan (this time). The girls reach a lake, thinking it's Eterna. Mokona tells them it's not Eterna. A monster then attacks them (it was the form of the lake) and Umi destroys it with her Water Dragon. The monster rain on them, making them glow, and they brush it off, after they dry up. They head for Eterna, as Alcyone watches afar, laughing to herself. They head on to Eterna, only to see a line. Mokona wanders off, and Hikaru follows. Hikaru tells Umi and Fuu to see this, and they are surprised to see that Eterna is two dimensional. To see the fountain, they would have to be high up. They want to get Escudo, so they jump into the fountain. The girls are then seperated, and put onto a test. Hikaru sees her pet dog named Hikari, Umi sees her parents, and Fuu sees herself. The girls are attacked by their test, and won't fight back. They then hear Princess Emeraude's voice, telling them abou

Ascot sends one of his worm creatures to kill the Magic Knights. Ascot decides to take a nap while his creature kills them. The girls gives Presea Escudo, along with their weapons. Presea proceeds to make them in another room, and the hear the monster. The girls tells Presea to take care of their weapons, while they handle the monster. The worm attacks the Magic Knights who are a bit sucessful in defending themselves, but it turns and heads for someone else... Presea! Weak, Presea finally completes their weapons, but the monster breaks into the room. The ceiling falls, and it hits Presea. The girls see Presea, and their new weapons (each of them have swords). They then use their new weapon to kill the monseter. They all rush to Presea who is at her last breath. She dies, and Hikaru sworns her revenge. Ascot wakes up from his nap and calls his creature only to find his remains killed by the Magic Knights. He swears he'll avenge his death as well.

Clef tells the girls with each earthquake that happens in Cephiro it means that Cephiro is falling. If Cephiro falls completely, they cannot go back to their world. He then tells then to become a Magic Knight, they would need to awaken their Machine. Mokona knows the way to each one. Ferrio, sees Ascot, planning an attack on the girls, and he tricks Ascot, by saying he would want to help. Ascot doesn't fall for it, and tells him if he could, bring the girls to him in the desert, where the monster would hopefully kill them. Ferrio meets the girls, and lure them into the desert. The monster attack them, but Ferrio finds out from Ascot, the monster can attack by sound. Using the orb (or the gift that Princess Emeraude gave, two, a set, a pair, etc.) Ferrio calls the monster and lure it away from the girls. A small monster then gives the message to the girls, saying that Ascot has taken Ferrio. If they want to save him, they need to go to the desert. They decide to sleep on it, think

Hikaru takes an estrange monster for caring. She names it Hikaru after her dog. We then find out that ""Hikari"" is actually a ""pet""/monster that Ascot was training. Hikaru spends too much time with Hikari and Fuu and Umi thinks she'd been hurt by a monster or something worse. They go out looking for her, and find a monster by Hikaru. They are ready to kill it, but Hikaru tells them it's Hikari. They don't fight it, but Hikari (or ""Bigot"" the real name) runs amuck on the forest, setting fires, etc. Hikari also knocks Fuu unconcious, and takes a hold Umi. Hikaru is mad, and kills Hikari. They bury Hikari, and experience an earthquake. They hurry off to find their Machines.

Alycone manages to trick Ascot into freeing her from a barrier that was holding her against her will. She promised him to give power to one of his monsters that would kill those Magic Knights. In an open field, Umi is still obessed with her fencing competition that would of been a week away when they originally arrived in Cephiro, even though weeks (or possibly a month) already has passed by. Hikaru suggest if you wish hard enough, maybe you can still make it at your competition, since Cephiro is a land of power. Both Hikaru and Fuu would pray for Umi too. A few yards away, Alcyone gives Ascot power to his monster named ""Luci"", which not only over powers it, but freezes itself, as well as Ascot as well. Hikaru, Umi and Fuu see the snow storm blasting their way, and Umi makes a wish before getting hit. She wants to return to Tokyo. Hikaru and Fuu suffer from hypothermia, and falls to the ground. Then Alcyone stops the weather and hopes that her plan on killing the Magic Knights work

The girls reach a lake, and Mokona reveals a Machine is in it. They travel underneath the water, to a place with air (thanks to Mokona.) Umi doesn't feel good, and starts to glow. She wanders off, and suddenly they notice a painting of a blue dragon. It's start to come out, and Umi is cut off from Hikaru and Fuu behind two large doors. Ascot then shows up with his monster, and battle the Hikaru and Fuu. They don't to much damage, but Fuu points out the glowing jewel on its head, and Hikaru breaks it. The monster becomes stun, and Ascot comes out. He then goes on how they all killed his monster friends. Hikaru tells him if they were his true friends, he would not hurt them or harm them in anyway. The monster wakes up, and starts to go berzerk on them. Ascot runs away, while Hikaru and Fuu fights it off. Meanwhile with Umi, the dragon tests her, by telling her to show her courage of the heart. She hear the screams of Hikaru and Fuu, and suddenly the doors disappear.
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