User blog comment:MeDeoPal/On the Origin of Titans and Shifters/@comment-24.35.129.2-20150111023213

i know the titans oragain,  100 years ago a scienctest family was killed because he refused to stop his experments so he took revenge by making a potion to put in the water suply that would turn humans to titans. he also made a shot to turn his followers to titan shifters. they planed to attack when the humans where weakend so reainer and Bertolt attack with out telling Dr.yeager because he helped the humans so after his wife died he gave a shot to eren turning him to a titan shifter but after eren ate his dad and the shot supresed the memory.