Nahtmetal

A reboot of the Transformers franchise, this is the first series in the Unicron Trilogy. 2002-2003.

Seiji Sawamura is the toughest student in his high school. His grades aren't very good because he fights more than he studies, but he tends to protect the weaker students from bullies.

The story begins with Yggdrasil, a popular online game which is quietly shut down one day; however, the protagonist Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard.

In Zeta Gundam, we see the future world of the Universal Century through a dark mirror. Having defeated the Zeon menace, the Earth Federation has itself become cruel and oppressive.

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.