Kiyasuku Fureru na Kuroshoubi ni

Tamaya Kuroha is a "lonely daughter" who is so distrustful of people that she keeps everyone at a distance and is feared as the "Black Rose Princess." However, her life changes drastically when her childhood friend Rio appears as her bodyguard! As Rio loves Tamaya too much, she is pushed around both physically and emotionally, and her gray youth begins to change color...?