Emi Sendou appears in broader Cardfight!! Vanguard media as Aichi Sendou's younger sister, with documented personality traits and described appearance. Her narrative involvement extends to the -IF- storyline's distorted reality where she operates as a magical girl, and in the main series, she utilizes a Bermuda Triangle deck during cardfights. For the specific context of "mini vanguard Large," Emi Sendou's character details, background story, development, and role are not provided.