Reika, who yearned for a college teacher, became a teacher. I know from Ito, a pupil who went in because Ito's dad was a teacher and killed. Despite being astonished, Reika started to hear and sense the teacher's consciousness while waking up Ito's core, which is his father's murder and shifts in the setting. Ito is also drawn to Yuka, and one day the two are impulsively bound together.