Mikoto to Reiミコトとレイ; Mikoto and Rei; Mikoto y Rei; Mikoto e Rei

"Hey, Rei, Your hickeys showing, you know?" A story about a free-spirited gyaru, Mikoto, and a serious disciplinary committee member Rei. What will Rei do about Mikoto's teasing? Well, she's not completely against it... A small look into their cute and somewhat lewd daily life. (Kadokawa, translated)