Shingeki No: Kyojin Season 3 Episode 7

Kenny Ackerman discovers he cannot use the Founding Titan's power because he lacks royal blood, leading him to abandon Rod and allow the chaos to unfold.

Rod Reiss attempts to manipulate Historia into injecting herself with Titan serum to devour Eren and reclaim the Founding Titan . Shingeki no Kyojin Season 3 Episode 7

Attack On Titan Season 3 Episode 7 Review: Wish | Den of Geek Kenny Ackerman discovers he cannot use the Founding

Rod reveals that past Reiss family members who inherited the power also inherited the First King's "will," which prevents them from ever using the power to eliminate the Titans outside the walls. Shingeki no Kyojin Season 3 Episode 7