On the day I became a demon, the entire school was holding a celebration party for my junior sister.
The master who loved me the most allowed her to live in my former room and practice my sword.
I used to be the most favored junior sister in our division, but after the little junior sister came, everything changed.
Later, Master held my body and cried bitterly.
He placed my body in an ice coffin and confessed to me every day.
