Abandoned by their abusive parents and with only each other to depend on, siblings Utsutsu and Yume Hasegawa find themselves led astray by beautiful red butterflies that have appeared in their world. Unbeknownst to them, these crimson winged heralds trumpet the beginning of a cannibalistic nightmare—a mysterious virus known as Pupa is about to hatch. After succumbing to the full effects of Pupa, Yume undergoes a grotesque metamorphosis into a monstrous creature with an insatiable desire for flesh; Utsutsu, on the other hand, is only partially affected, gaining remarkable regenerative powers instead. Reaffirming the resolve to keep the promise he made to himself years ago, Utsutsu is willing to sacrifice everything in order to always be there for his precious little sister. Pupa tells the story of a loving brother's desperate struggles to save his sister while protecting the world from her uncontrollable hunger. [Written by MAL Rewrite]

Continuing on his quest to retake Ecbatana, Prince Arslan and his company march toward the city. But upon receiving news that the neighboring Kingdom of Turan is launching an assault on the Parsian stronghold at Peshawar Citadel, the prince is forced to turn back in order to defend the fortress. Amid holding off the invading forces, the Parsian army is met by an unexpected visitor. As Arslan returns to Peshawar, Prince Hermes takes a slight detour from his clash against his cousin to search for the legendary sword Rukhnabad, which would grant him the right to rule and take back what he believes is rightfully his. However, after unearthing the lost artifact, the blade is stolen by the Temple Knights of Lusitania, prompting the masked warrior to give chase. Meanwhile in Ecbatana, the captive King Andragoras III finds an opportunity to strike and begins to make his move. As the separate sides of the Parsian royal conflict clash, Arslan's right to the throne falls under attack. But no matter the obstacles in their way, the young prince and his loyal band of warriors charge forward to restore Pars to its former glory. [Written by MAL Rewrite]

Nekoma High School’s volleyball team recruits a new member: the half-Japanese, half-Russian Lev Haiba. Though the self-proclaimed ace is blessed with great height, he lacks basic volleyball techniques. This gives the team's setter, Kenma Kozume, a hard time when matching up with him. To everyone’s surprise, Nekoma’s coach suggests that Lev play in the Kunihira Senior High School’s practice match, leaving Kenma no choice but to cooperate with the tall player. Will Kenma be able to overcome this new challenge?

The Straw Hat crew salvages a treasure chest from a sinking wreck, inside which they find an old lady. To get the pirates to take her home, she promises them the treasure of a golden crown on her island: Mecha Island. Upon arrival, the crew is attacked by the lord of the island but he has a change of heart and decides to seek their help to solve the mystery of the Golden Crown.

(Source: ANN, edited)