It was unclear how much time had passed when a beautiful melody drifted into Senna's ears. This song...

"Sis, don't sleep anymore. Please wake up, okay? I miss you so much. Sis, it's been so long since you sang me to sleep. Do you still remember this song? You used to sing it to me all the time. Please wake up, sis. I'm so worried about you."

The familiar voice echoed in her ears-it was Tobias's voice. Could it be... that she had died and met Tobias in heaven?

"Sis, wake up! Open your eyes ...