Reki

Reki (レキ; 蕾姫, Reki) is an S-rank Butei Snipe department. Her real name is unknown and is shown to be habitually taciturn, constantly impassive, indifferent in fashion, and almost always found wearing her headphones. Reki at start of the series was shown to be emotionless earning the nickname "Robot Reki." However, throughout the course of the series from her interactions with Kinji Tohyama, she starts to develop emotions, which she shows Kinji by smiling at him and falling in love with him as well.