Eri(the investigator) founds intruder, he said his friend is kidnapped by shit incubus worshippers and police doesn't help him.
Eri and intruder seaching around stealthily and they finally found friend……but it's too late, friend was already corrupted…
She followed her evacuate method and run for protect intruders innocence.
After his decontaminating, this incident left her heart broke…
This is why she hates intruder of contained area…