On a remote island far from the mainland named Urashima, a man washes ashore, with no recollection of his name or homeland. What he does recall, however, is that he is a time traveler with a mission: to save a certain girl from harm. As nightfall arrives, he meets Rinne Ohara, a girl who sings a tune that reminds him of a specific name—Setsuna—and decides to use it as his own. Knowing another "Setsuna" herself, Rinne takes him to her household as a servant, hoping that he is the same one she remembers. On the other hand, Setsuna continues to learn more about Urashima, desiring to identify his lost past. He comes to know about the island's folklore, its three great families, and the endemic disease that prevents anyone afflicted from stepping out into the daylight. As the mysteries of his missing memories and Urashima itself unfold, Setsuna must remember his purpose and fulfill his mission as soon as possible. But, as he witnesses the myriad of troubles plaguing the island, Setsuna begins to question—is his temporal displacement merely an effort to change a single girl's fate? [Written by MAL Rewrite]

Rumors tell about an ageless girl who only comes out at night, living in a mansion in the middle of the forest. Some say that she is a living doll with a soul. Upon hearing these rumors, Akari Amano seeks out this girl, only to find herself lost as she treks through the woods amidst the darkness. A vampire named Sophie Twilight saves her, turning out to be the rumored girl. However, unlike the vampires told in myths, Sophie does not attack humans and instead orders her blood online. Akari instantly becomes charmed with her doll-like appearance and proceeds to abruptly move in with her, thus starting their life together. [Written by MAL Rewrite]

In the distant future, mankind's dependence on fossil fuels will lead to their complete depletion, an energy crisis unlike anything the world witnessed. Out of retaliation and fear, humanity began focusing at an alternative source of energy: solar power. Different nations have united together to form three major factions—the Union of Solar Energy and Free Nations, the Advanced European Union, and the Human Reform League. Each of these sectors has access to a solar power generator, which gives them limitless energy. As a result, countries that were once dependent on the sale of fossil fuels are now plunged in poverty, leading to years of warfare and internal strife over the control of solar energy. Amid this chaos, an unknown paramilitary organization appeared identifying themselves as "Celestial Being," aspire to end all warfare through armed intervention by using mysterious and technologically advanced Mobile Suits known as Gundams. Mobile Suit Gundam 00 follows the story of Celestial Being's Gundam Meisters Setsuna F. Seiei, Lockon Stratos, Allelujah Haptism, and Tieria Erde. These four dive into the devastating battle between the three superpowers to accomplish their goal of changing the world. [Written by MAL Rewrite]

The story starts with Haruhiko explaining about human sense of vision, as well as optical illusions and visual preconceptions. The students of Hosea Academy goes for a summer trip by the sea. During the trip, Haruhiko states that he hates summer, and wishes that he is inside his house reading... until the other boys point out about the swimsuits the girls would be wearing. When they arrived, they are told that even though there are a lot of visitors each year, a sudden appearance of a Phantom scares people away, so they are asked to exterminate the said Phantom. In return, the lodging and food fees will be free. That being said, when asked about what the Phantom did, the lodge house owner refused to say anything. The first day pass by without anything happened, and they thought that since there is no visitors, probably the Phantom had moved to somewhere else. Unable to sleep, Haruhiko and Mai have a small talk under the moonlight, and Ruru disturbs them when the mood is just good. Before they know it, Koito, Kurumi and Reina join the gathering as well. During the next day, they play by the sea. Attracted by the girls in swimsuits, the Phantom appears and shoots water beam towards them, making a polka dot censor to make an optical illusion of them naked. Despite trying their best while being embarrassed, their attacks have no effect at all. Haruhiko summons Marchosias and Chtulu and is able to repel the censor effect for a moment, but being angry, the Phantom enlarges itself and shoots a huge amount of water to the air, this time creating white censor bar, with the same effect as the previous censor. Two of Haruhiko's male friends already give in to temptation of seeing the naked illusion, but Shousuke reminds them that it's more erotic if "you thought you can see it, but you can't" (though they are defeated in the end anyway). Figuring out the basis of the Phantom's ability of manipulating light and temperature, Haruhiko asks Koito to surrounds the Phantom with her fire voice to disperse the effect. With the illusion ended, Mai uses the sea to increase her water techniques, while Kurumi uses Albrecht to throw the Phantom in the air, which ends up eaten by Reina. With the case finally resolved, they feel that they can enjoy the rest of the vacation, until Haruhiko come back from the sea (he was swept away by the current when Mai and Albrecht attack the Phantom) without his swimming trunks, now really naked instead of just an illusion. As the four main heroines run away out of embarrassment, an equally embarrassed Haruhiko shouts that he hates summer (though Ruru likes it).