High-school student Daichi Manatsu works for the Globe organization to pilot a giant robot called the Earth Engine Impacter to protect the Earth from the invading alien force known as the "Kill-T-Gang", from the planet Uranus.
One night right before summer vacation, Daichi Manatsu, a second-year in high school, sees a weird round rainbow floating in the sky above Seed Island (Shuushi/Tane Island) and ve…
Daichi was successful to unite the Earth Engine Impactor base formation. With a mysterious girl claiming to be "magical girl", he repel the Kil-T-Gang Morukin. Daichi's father was…
Yomatsuri Akari who is the only daughter of the Globe commander - Nishikubo - applied to the new team, they're enjoying the full summer of Tanegashima. In front of such four, a n…
Amarok and Moco from Planetary Gear commencing an assault on Globe base.
There are two factions divided over how to deal with the Kiltgang: the interception faction that wants to fight them and the ark faction that wants to send out a new humanity to e…
Tippei's "father" has gone missing after the incident on the Tenkaidou. The "ark" faction seeks to allow a few chosen people to escape from Earth to avoid the Kiltgang. They try t…
Just like Hana predicted, the Kiltgang appear inside defensive zone 1. Daichi is pinned between them and almost defeated, but Teppei and his Kiltgang Albion save him. Teppei destr…
After failing to attack Earth by themselves, Amara and Moco decide to awaken the other members of their race that are scattered to assist them. The first member they contact is Zi…
Ai, the avatar of the robot Aiatar is the second Design Child contacted by Amara and Moco, and to increase their chances of success, they kidnap Akari and force her to infiltrate …
Amara and Moco awaken Lin, the third of their companions and the Avatar of the Kill-T-Gang Liebam. Daichi confronts Lin and defeats her, but fails to prevent her from summoning Li…
Akari and Hana befriend a young girl called Setsuna, unaware that she is one of the missing Design Children. Amara and Moco attempt to contact Setsuna, but stumble into a confront…
The Midsummer's Knights infiltrate an underground ring in search for Baku, the last of the missing Design Children, who is being forced to fight illegal matches for the Yakuza. Am…
Baku refuses to join the other Planetary Gears out of his attachment to Kumiko, the daughter of the local Yakuza. But this changes when the truth about Kumiko comes to surface and…
With no missions to perform in the next days, Daichi and his friends are given a few days of R&R. In the occasion, Hana reveals that she loves Daichi, but fears what he may think …
Running away from her friends, Hana meets Setsuna again, and the two end up pursued by Amara and Moco, while Puck, the AI built by Macbeth Enterprises, lays a trap to the CEO and …
Now finally assembled, the Planetary Gears get the full support of Macbeth Enterprises in their endeavors, unaware of Puck's true intentions. Meanwhile, with Daichi and Teppei sti…
An inspector from Salty Dog arrives at the Tanegashima Base and questions the merits of the Midsummer's Knights so far. Meanwhile, Moco and Zin launch another attack on Earth, and…
Daichi, Hana and Teppei board a shuttle to return to Earth, but during reentry, an unexpected change of course leaves them stranded in the middle of Australia. Knowing that they w…
After hijacking a transport to return home, Daichi and the others are pursued by an unmanned Impacter from Salty Dog, who is determined to capture Hana at all costs for the sake o…
To defeat the Planetary Gears once and for all, the Midsummer's Knights prepare to depart for Uranus in order to destroy the enemy spaceship and render them powerless as part of t…
Hana is kidnapped by Salty Dog, but Daichi and the others are too busy dealing with a shower of debris that threaten the space station. When Teppei's impacter is damaged and unabl…
After averting the previous crisis, Daichi and the others are ready to begin the Operation Summer, but Salty Dog activates their most powerful weapon in order to stop them. Meanwh…
On their way to Uranus, Daichi has a strange dream where he meets the Planetary Gears who tempt him to keep living with him in a dream world, but manages to escape thanks to the m…
At last the Midsummer's Knights reach the Planetary Gears mothership, Auberon. The enemies attempt to halt their advance, but soon after, Puck appears and takes control of Auberon…
Puck takes control of Blume while possessing Hana's body and leaves to consume all life on Earth. With the Planetary Gears defeated, Daichi is the only one left on Puck's way, fig…
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