Tatsuko Sakaki  

Postarie, 酒己 達子 / ポスタリィ

Tatsuko Sakaki, commonly referred to as Postarie, is one of the central characters in Mahou Shoujo Ikusei Keikaku. She's a ninth-grade student at Namiyama Middle School who tends to be reserved and introverted. Her magical ability allows her to return items to their rightful owners.