It's summer, and Norimichi Shimada and his friends want to know if fireworks look round or flat from the side. They forge a plan to find the answer at Moshimo Festival's fireworks display. However, Norimichi finds himself conflicted when his classmate, Nazuna Oikawa, plans to run away from home and wants Norimichi to join her. When things go awry in their attempt to escape, a strange orb in Nazuna's possession gives them another chance at staying together.

[Written by MAL Rewrite]

The Sacred Book of the land of Eija has been rediscovered and with it the legends of a mysterious and all powerful ship. Now Princess Crystal of Megaronia has set forth on a quest to recover the ship and its ultimate weaponry. All that stands between her and total domination of the world is a small group of piratical misfits. Swords, sorcery and technology blend to form a mesmerizing tale of Good vs. Evil in Ellcia.

At the academy Miami Takashi attends, higher education has sunk to the lowest levels of depravity, with armed hall monitors, teachers who wear masks to hide their identities and special detention sessions in a torture chamber beneath the gym! It's a curriculum designed to chew up sweet young things, and poor Miami's been voted "Least Likely to Survive" in her class! Is there no hope? Can no one save her? Enter Kekko Kamen, the most outrageous superheroine ever! Clad in a red mask, red boots and nothing else, she is the supreme protector of innocents like Miami. Armed with her trusty nunchaku and a body that just won't quit, she'll make chopped pork out of the swine who run this school from hell! But who is she really? The only one who knows for sure is creator Go Nagai and he's not giving anything away... except lots of free peeks at Kekko Kamen's magnificent physique!

Once upon a time, there was a certain family having strong influence on the rule of the Imperial Court. They had their own might called "Kidou" and yet got hated because of the might itself. At last, the patriarch of the family was entrapped to his death, and all the family was doomed to ruin... The present day — the survived descendants of this family, now calling themselves "Kidousyuu" schemed to resurrect their murdered patriarch once again, and the ferocious evil spell went into action.