Powerless Yet Bonded to the Family's Next Heir

Story :  The Ichijo family stands atop the nine families, all of whom possess supernatural powers that protect the land. Riko Momose was born into a powerful branch, but during the foresight ritual meant to determine her abilities, it was discovered she had absolutely none. From that moment on, she was mistreated by her parents and her younger sister. Riko's power eventually awakens, but in order to live a peaceful life, she keeps it a secret. During the spring of her 17th year, Ren, the next head of the Ichijo family, becomes her teacher and notices her powers. Intrigued, he quickly approaches Riko, but...