{2 years later.}
"Yui, the doctor is calling you."
An 8-year-old Yui looked at Nera. It was as if she knew what was going to happen to her. Her eyes flickered a little, but then she smiled and said to her best and only friend, "I'm going, Nera."
Nera had a sad expression; she knew what was waiting for her friend. She had been in that place for 3 years and had gone through many experiments.
"Yes, I will be waiting for you here," Nera said and tried to smile, but it was almost impossible for her to be able to smile at this moment.
Yui held Nera's two hands when she said, "You once asked me if I was sad to come here, remember?"
"Yes," Nera answered, recalling the subject.
"Actually, I'm glad it happened." Yui smiled kindly. "I was able to meet you thanks to this, and even though I had to go through all this, I felt and discovered what it was like to be happy when I was by your side."
