I Am My Sister's Human Blood Bank

Synopsis

I existed as my older sister's living blood bank. That was the reason I was born. She needed the freshest blood, so I had to remain on call every hour of the day. I could not have junk food or get sick. My only job was to stay healthy for her. When I finally turned eighteen, they dragged me into surgery to harvest my bone marrow for my sister. Half-conscious and unattended, I died alone in the hospital. I thought that now the three of them could finally live happily as a family. But after my death, they stopped loving my sister too.