arturo_kun

In the year 2022, the Virtual reality Massive Multiplayer Online Role-Playing Game (VRMMORPG) Sword Art Online (SAO) is released. With the Nerve Gear, a VR Helmet that stimulates the user's five senses via their brain, players can experience and control their in-game characters with their minds.

When 17-year-old Makoto Konno gains the ability to, quite literally, "leap" backwards through time, she immediately sets about improving her grades and preventing personal mishaps. However, she soon realises that changing the past isn't as simple as it seems, and eventually, will have to rely on her new powers to shape the future of herself and her friends.

Rintaro Okabe is a self-proclaimed "mad scientist" who believes that an international scientific organization named SERN is conspiring to reshape the world according to its own interests. He and his friend Itaru Hashida inadvertently create a gadget able to send messages to the past.

The story begins with Blaze—a weapon that is the manifestation of a human's soul. Tooru Kokonoe happens to be qualified for this, but for some reason his Blaze is not a weapon, but a shield.

Set in the near future, year 2150, Japan. 50 years after the official end of World War III, battles still persist in the war-torn country, and have produced completely unexpected results.

The original manga revolves around high school boy Ryouta Murakami, who cannot forget his female childhood friend whom he let die in an accident. Feeling that he must fulfill their promise of proving the existence of aliens, he has continuously looked up at the starry sky as a member of the astronomy club.