Neko no Onee-chan ga Oshiete Kureta Koto by Speed

Kiyujiro who lost his mother, lived with his father and one cat, Luna.
My father tends to be absent, and only Luna confuses Kojiro's loneliness.
But one day, his beloved. Luna dies in an accident.
On rainy night, Kiyoshiro buried the dead body of the cat in a cemetery in the mountain depths.
There was a place where "was prepared for reunion with important people".
Seijiro who stuck in alone.
But on a rainy night, a girl wearing the sound of a familiar bell appeared.
"Let's live with me from today.
I know everything about you. I will listen to what your sister says anything. "
Kiyujiro hugged me unintentionally to the woman feeling some nostalgia ...