A Sound Argument

Seiron (正論)

Two years ago on Zeke's advice, a special envoy of Hizuru, Kiyomi Azumabito, landed on the newly-completed docks of Paradis Island for negotiations. A tattoo on Mikasa's arm revealed that she is the descendant of Hizuru's ruling shogun. Azumabito believed that Hizuru could help Paradis achieve Zeke's plans for protection from the Rumbling in return for acquisition of the valuable Iceburst Stone - the mysterious Paradis substance which powers ODM gear. 

She listed Zeke's propositions: to enact a test of the Rumbling, strengthen and modernize the Paradis military, and for the Beast Titan to be passed down to someone of royal blood, who would to bear children to pass on the titan every 13 years. Historia agreed to inherit the Beast Titan, but Eren vehemently rejected Azumabito's proposal. Hizuru decided to join the Marleyans against Paradis while the Survey Corps struggled to decide their strategy against Marley and who should inherit Eren's Titan when his term runs out. In the present, Historia is pregnant and lives with a local man she knew from her childhood. Jean and Connie believe Eren has lost all sympathy for his friends and Armin proposes that Eren could be eaten by someone more trustworthy.