MonarchFrost

Attack on Titan (literally translated as "Advancing Giants") is a Japanese manga series, and now an anime, originally written and illustrated by Hajime Isayama. The story centers around the lives of Eren Yeager, his adoptive sister Mikasa Ackerman, and their friend Armin Arlert, who live in a world where the remnants of the human population live inside cities surrounded by enormous walls due to the sudden appearance of the Titans, gigantic humanoid creatures who devour humans seemingly without reason.

In the year 2022, the gaming industry has reached a new height after the development of the NerveGear, a helmet-like controller that allows the user to fully dive their senses into the world of virtual reality. After a closed beta with only 1,000 testers, the Virtual Reality MMORPG Sword Art Online is launched.

Shibusen, standing for Death Weapon Meister Academy (DWMA) the technical school for Reaper Armsmasters that operates from the deepest recesses of all the corners of the world, in order to prevent the second coming of the so-called Demon God who is feared upon bringing destruction of all humankind and envelop the world with nothing but madness and darkness. The reaper built this agency for weapons and for those who will be trained to wield them.

They are neither plants nor animals. They differ from other forms of life such as micro-organisms and fungi.

Sora and Shiro are a pair of siblings, brother and sister, who are well known as brilliant. Yet they are NEETs - useless to society, and (Not in Education, Employment, or Training) - and even worse they are completely house-locked shut-ins (hikikomori!