Yua Kirino (霧野 夕海 Kirino Yua) is a girl who aims to complete her deceased father's PDA map of her beloved Artificial Island.
She was born sometime around 2007. Following the murder of her parents, Yua was adopted by Mr. and Mrs. Iizuka, and began living at Mrs. Iizuka's restaurant along with the woman's six children.
One Friday evening in 2019, Yua is crawling in a vent when she accidentally witnesses a brutal gunfight through the vent grill. The murderer spots her, and she runs away, terrified. In her flight she ends up in The Pits and is accosted by a drug-addled man, only to be rescued by Hayato Inui.
Hayato takes her to Kelly Yatsufusa's van, where he makes Kelly conduct and broadcast an interview with him. Hayato soon flees, and Sōji Kuzuhara arrives to find Kelly and Yua unharmed. As Kelly floors the pedal and the van takes off, Yua informs Sōji of what she witnessed and that she'd seen the murderer himself talking with Sōji before. Sōji sends her away from the van to keep her safe.
After everything is over, she and Sōji go to greet a newcomer to the island.
(Sections: Appearance | Personality | Chronology | Trivia etc. forthcoming)