Kiyoko was playing with a white bunny until nightfall. Then she had to go back home. But you notice the same white bunny following her all the way home. She finally notices and smiles. "Hey, Hikari? Wanna live with me?"

Hikari (white bunny) walks up to Kiyoko's feet and lays down at her feet. 

"Okay! From now on...you're a part of my family!" She beamed and picked up Hikari.

And that's how Kiyoko and Hikari, became best friends.