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...
If that happens, 
we'll be in different grades.
سنكون في سنتين دراسيتين
.مختلفتين إن حدث هذا
Wenn das passieren würde,
Si eso pasa,
estaremos en años diferentes.
Si pasa,
estaremos en años diferentes.
Si ça arrive, on ne sera plus
dans la même classe,
Se dovesse accadere,
finiremmo in classi diverse.
Se isso acontecer, 
ficaremos em séries diferentes.
В таком случае 
мы окажемся в разных классах.