EVE AT-01

The protagonist's classmate who suddenly transferred in. Her speech is unsteady, and they often remain expressionless—perhaps because she struggles to show emotion. Though you wouldn't guess it from her appearance (?), between her name, her expressionless face, and her odd way of speaking... it's pretty obvious she's not quite like other humans? (She seems to be trying to hide it, though.) The other students treat her normally, but the protagonist feels more uneasy about her mechanical interactions with others than she does with the other girls. [From official site]