I traveled through hundreds of worlds at once

After leaving the Starry Shrine, Hikaru Ikki said goodbye to her two friends and walked back to her home along the street. She took out her textbook from her schoolbag, put it aside after Hayakura Mai's warning, and started to review on the table.

She kept reviewing until after eleven o'clock in the evening. She became drowsy. After shaking her numb palms, she fell into bed drowsily.

After a while, Hikaru Ikki fell asleep.

Suddenly, a low and vague voice came to Hikaru Ikki's ears while she was sleeping. The voice was a bit like a whisper. She moved her ears instinctively to hear clearly what the voice was saying.