Tsuji Tokiko
Tokiko Tsuji is one of the three children spirits who roam Heavenly Host Elementary School and the second victim of the murder case that took place in it.
Unlike Ryou or Yuki, she never tries to kill any of the main characters, expect for Mayu, whom she killed with Yuki. Also, Tokiko kills her victims by removing their heads like seen from many corpses laying in the school.