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Character from Muv-Luv. Shirogane Takeru's next door neighbor, childhood friend, and classmate. She has red eyes and long red hair with a huge yellow bow.
She is notable for her expressive ahoge, and is often credited as the first character to have a reacting ahoge. She's also known for throwing the strongest punches known to man.
Sumika was voiced by Taguchi Hiroko up until the Alternative anime adaptation, where the role was transferred to Kusunoki Tomori. She's voiced by Lindsay Sheppard in Project MIKHAIL's English dub.