The tests have come, and Keitaro can only hope to succeed. However, in the final stretch, he fails miserably and daydreams through the test. Assuming that he has failed, he runs away, so the rest of the cast hunts him down on a remote desert island to bring him back. The Toudai entrance exams have finally come (again) for Keitaro. With all his confidence Keitaro sits for the paper, but ends up falling asleep and dreaming about Narusegawa. Waking up with barely any time to complete the paper, Keitaro thinks he will fail the paper and tries to escape from Hinata Lodge and forget all the memories with it. By a stroke of luck he meets Seta, but ends up in a faraway island with the whole cast trying to look for him. (Source: ANN)

Alina Clover becomes an adventurers' guild receptionist, believing that—unlike the adventurers who risk their lives every day to conquer dungeons—she will enjoy a safe and comfortable career with plenty of benefits. She hates overtime work more than anything, longing for the day when she can finally clock out on time. Sadly, that day has yet to come, as she must constantly trudge through piles upon piles of paperwork. To make matters worse, when adventurers take too long to subjugate a dungeon boss, the backlog only grows, forcing Alina into even more overtime. Whenever her patience runs thin, she dons a disguise and takes care of the boss herself, soon gaining infamy as the enigmatic Executioner. Alina has managed to keep this secret for two years—until she finishes off a boss assigned to the high-ranking party Silver Sword. Unfortunately for her, the party's eagle-eyed leader, Jade Scrade, deduces her identity, jeopardizing the receptionist's dream of a carefree life.

An evil army is leading a ground invasion against Earth, and their Lieutenant Shun Miller is determined to wreak havoc upon the populace. Miller's ruthless reputation strikes fear even into the hearts of his own subordinates, making him the perfect leader of a charge against a city protected by a powerful magical girl, Byakuya Mimori. However, his attack comes to a halt on the day of their first encounter—because he unexpectedly falls in love with Byakuya at first sight! Overcome by Byakuya's adorably delicate innocence, Miller begins to shower her with gifts and kindness. But Miller soon learns that Byakuya's Angel—the cat-like familiar who turned her into a magical girl—has been exploiting and manipulating her all along. This discovery solidifies Miller's resolve to ensure Byakuya goes on to lead a happier life, but as the war continues, they wonder if their blossoming affection can overcome the reality of their differences.

Once upon a time, a race known as the Shadow Angels attacked Earth to harvest the life force of all those who inhabited the planet. Thanks to some outrageous miracle, the Shadow Angels went dormant, and humanity was able to live another 12,000 years without fearing their presence. But 11 years after a catastrophe dubbed the Holy Genesis brought ruin to the Earth, the Shadow Angels were stirred from their slumber and resumed the attacks once more. To give humanity somewhat of a chance, an organization known as DEAVA was formed, and use of a robotic weapon named Aquarion has been authorized. In order for the Aquarion to be brought to full power, three pilots must combine their hearts, bodies, and souls into one—a feat few can hope to accomplish. Thus, the search for so-called 'Element Users' was prioritised, hoping to ensure humanity's future. Sousei no Aquarion follows the story of Apollo, a near-feral young man brought up in poverty, who is believed to be a legendary hero reincarnated. After his best friend is taken by the Shadow Angels, Apollo chooses to become an Aquarion pilot. Will he be able to turn the tides of the war, and free humanity from the threat of the Shadow Angels for once and for all?