Baka to Test to Shoukanjuu‎-Volume 12, The Thirteenth Question

Please translate the following English word:

"Recollection"

Himeji Mizuki's answer:

Erinnerung

Teacher's comment:

Correct.

I do dream of it even now.

What I saw during my elementary school days, in the school after class had ended.

As the sunset shone into the classroom, that girl continued to face the blackboard alone, writing something silently. 𝒇𝘳𝐞𝚎𝓌𝑒𝑏𝒏𝑜𝙫ℯl.c𝚘𝒎

It didn't look like she was punished, nor did it look like she was on cleaning duty, and I couldn't tell at first glance what she was doing.

She wrote it, erased it, erased again and wrote.

That time, the serious look she showed as she continued on — her figure left a deep impression in my heart for some strange reasons.