What scared me the most was Nina. Saeki is suspicious, but his behavior is still somewhat understandable. Nina, however, feels more mysterious and frightening. She seems kind and supportive, yet her attachment to Aose feels possessive rather than loving. It is not romance or friendship — it feels like she wants to keep Aose close and continue watching her quietly.
Even after Aose quits her job and returns to her hometown, I cannot stop wondering if Nina is still observing her from somewhere. That quiet, persistent obsession made the story very disturbing for me.
This entire review has been hidden because of spoilers.