Two cats of our knowledge, Luna and Artemis, had a new litter:
small twins kittens, one male and one female.
Their names are Astro and Leela.
So Diana soon became the big sister and guardian in charge of those two adorable kittens. Leela is a white cat much like his father, with the same brown eyes and her mother's character. Astro is instead a black cat very much like her mother, with the same blue-green eyes and the patience of his father.
The twins cats, soon, were destined to become the new directors of the Queen Chibiusa in adult version and his daughter Mina, along with the new Sailor Senshi.
They were all he had wanted the parents, including the question of marriage and love.
But something suddenly changed in the lives of these two cats. For them, there will be some very difficult conflicts and they will have to rely heavily on the help of their eldest sister Diana.
You'll find out soon in the next chapters! ;)