Yuuna Ishihara

About

Ishihara Yuuna is the freshman girl who holds up the sign indicating the First Student Council. She has an eldest sister, Ran, who works in a convenience store, and an older sister, Mako, who also goes to Life School with her but is a senior. Her eldest sibling, her brother, Kenta died several years ago fighting an Original Taker.

(Source: SAI: Taker -Futari no Artemis- Wiki)