On her way to school one morning, a boy from another school gives Himeno a love letter. The sudden turn of events has Himeno bewildered, and behind her bewilderment likes a traumatic memory from her childhood. What happened in Himeno's past? Himeno and Nozomi have come to Kyoko's house for a study meeting. As they're working, something strange happens...
and check out who's walking 
around other than students.
.وانظرا من يتمشّى غير الطلاب
aber achtet mal auf die Leute,
die keine Schüler sind.
y miren entre los estudiantes.
y mirad entre los estudiantes.
e date un'occhiata a chi sta camminando
tra quegli studenti.
Vejam quem está andando
por aqui além dos estudantes.
кто тут ходит помимо учеников.