契約システムの全貌が明らかに。【第0話→pixiv #19803842 "»":[/posts?tags=pixiv%3A19803842]】　pixiv #20203391 "»":[/posts?tags=pixiv%3A20203391]←8話/10話→pixiv #21519639 "»":[/posts?tags=pixiv%3A21519639]