Yumi Tanaka

Yumi Tanaka is the long-lost sister of Aoi Kinouchi whose been separated in their fate for a long time because of the Altaire Bolt Incident that left their families death and become one of the surviving victims of the incident. 
She was a student in Minkan School University along with her sister as well as her new squad of friends from Erino. 
== Death ==
During her participation in hunting their foods at Kanagawa Forest Park, she got lost with her friend, Aoi Kinouchi by the distant corner with many long grasses. Yumi was scared as she heard the rumbling grass somewhere. She had thought that there was an enigmatic person who will eye on her until Aoi's voice changed to a panting sound that reached and echoed to Yumi. She trembles and thrilled when Aoi finally catched her. Without being hesitant, Aoi stabs her on the verge of her secret plan on killing her. Yumi lied on the floor being bloody and her corpse was never been found. Yet, it is about to confirm that Yumi somewhere was dragged by someone and is alive to revenge back on her betrayal.