Futsuu no Koiko-chan

Koiko has spent her life under the intense attention of her overbearing mother and the emotional distance of her sister. Though she resists the idea of being overwhelmed by such relationships, she still desires love and chooses to live as a typical high school student with a typical boyfriend and a typical romance. One day, a message from the school's most popular student, Tsurugi, disrupts her routine: "Your boyfriend is cheating on you." This event marks the beginning of the story.