White-haired girl from another world that got devastated by creatures called the Ultimegil. Despite having impressive scientific and technical smarts, she's a total klutz—constantly saying or doing thoughtless stuff that lands her in hot water with Aika, who regularly calls her out for it.
She's got it bad for Souji and makes it obvious through awkward, over-the-top flirting that drives Aika crazy. Later on, she transfers into Souji's school as his classmate and takes his last name, Mitsuka, claiming to be his cousin as cover.
Content compiled by AnimeList.moe from publicly available sources.
