I do not own Yu Yu Hakusho or any of its characters.
Hiei sighed,"Why do you need us?"
Ri took a deep breath and Hiei knew it would be a long story.
"You know that what happens in one world can also effect the others, yes?"
Hiei nodded.
"Well global warming in human world is taking effect in demon world. The island we live on is melting and all our people will probably die without your help. I won't deny that we deserve to die; our hearts have become cold in our efforts of self preservation. But I hope that we will be changed when we see the boy that we banished come back to save us."
She looked at Hiei who still seemed unconvinced.
"The elders were too prideful and stubborn to ask for help from the outside, so they combed through the libraries and temples looking for something that would help. They found an ancient scroll, like a prophecy. It said:
"When the city of ice is about to melt,
The stones of the twins will surely help."
"They wouldn't send me so I sent myself."
Just then, they heard a knocking on the window behind them. I guess they had been too loud out there because Yukina was awake and sliding the window open.
"Miss Ri! Hiei! What are you doing here? Please,come in!"
As they were walking to the door, Hiei pulled Ri aside and whispered,"She doesn't know I'm her brother and you're not going to be the one to tell her. Mouth shut. Understood?"
Ri nodded her head yes. They walked to Yukina's room. She was so happy to see Ri and gave her a big hug. She asked why they were there so late at night. There was an awkward silence.
"I was going to tell you this tomorrow, but I guess matters have forced me to say it now." Yukina looked confused by Hiei's serious tone.
"Yukina, I'm your brother."