Kazuki is still feeling down about being a ghost.  The ghost collector woman follows him and gives him her card if he needs to talk.  The girls are trying to figure out what's going on and while they are staking out a house that they think the ghost collector woman stays at, they see Kazuki enter.  When they try to follow, they are met with traps.  Kazuki meets the woman and eventually it comes down to giving himself up to her or watch the girls get boiled alive.  When Rin shows up and saves the day, it is revealed that the woman is the school doctor's sister.