Kishō Taniyama

When the man-eating giants called Titans first appeared, humans retreated behind massive walls. After a hundred years of safety, a colossal-sized Titan smashes through the defenses unleashing a flood of giants and carnage in the streets. Eren Jaeger watches helplessly as one of the creatures devours his mother. He vows to kill every Titan walking the Earth. He may be humanity's last hope against extinction.