After Yume's life was narrowly saved in AU (Alternative Universe)

"she was rescued by Sensei at the brink of death. Ever since that fateful moment, Yume regarded Sensei as her hero. However, things began to spiral into a darker path as Yume's feelings grew..."

The scene unfolded in a dimly lit school hallway. The flickering light from broken windows cast eerie shadows, adding to the suffocating atmosphere. The sound of cautious footsteps—belonging to either Hoshino or Sensei—echoed through the silence, a search for someone who had vanished after an emergency call. Then, out of nowhere, a soft but chilling voice pierced the stillness.

Yume : "Ah... you finally came." Yume stepped out of the shadows, her figure illuminated by the faint light. Her face held a soft smile, but her glowing red eyes betrayed an unsettling undercurrent. Her shirt was slightly disheveled, and in her hand, she clutched a small book—a diary.