Those Days I Collected Clow Cards with My Sister

The Kinomoto family has two daughters. Rei is the older sister, and Sakura is the younger. Rei is gentle, quiet, and not very healthy. Sakura is the complete opposite: she runs fast and has a loud voice.

Their lives might have continued like that forever. Then one day, Sakura opened the book that would change both their destinies. From then on, Rei always stood in front of her younger sister, protecting the sweet girl she adored.

On the day they collected the last card, Sakura suddenly asked her, "Big Sister, why are you so good to me?"

Rei reached out. Her fingertips looked almost transparent in the moonlight as she gently stroked Sakura's hair.

"Because I want you to be happy."

Nobody thought there was anything wrong with those words. Not even Rei herself.