Evil spirits descend, and vengeful ghosts return.
The entire 609 girls' dorm at ordinary X University awakens a halo of self-sacrifice.
While everyone else frantically gathers magical treasures to slay evil spirits, the residents of Dorm 609 are the only ones with halos of self-sacrifice above their heads. They gather terrifying-looking female ghosts into their arms and say, “Don't cry, don't be afraid. Your big sister is here.”
What's so scary about female ghosts? They're all our sisters, suffering through hardship just like us.
What's wrong with being self-sacrificing? If everyone were self-sacrificing, this world would be a wonderful place.
Theme: Restore the reputations of self-sacrificing people and female ghosts