"...Onee-chan is a fool." A plain girl named Sayuri, who had locked her heart tightly, thinking that no one would ever love her. But then, someone came into Sayuri's life to illuminate it—her younger sister Mikoto, who appeared as an angel. And now, her sister keeps insisting that they become lovers. I'm not even your older brother, I'm your onee-chan!!! A yuri manga beautifully wrapped in sisterly love, "Sayuri's Younger Sister is an Angel" Volume 2!!