Do You Remember? [Hitachiin Twin Love Story] OHSHC

Many years ago when the Hitachiin twins were younger they had been approached by a female who wanted to play with them, but they questioned her to figure out who was who-not realizing what they had done to the poor female. Now years later they get re-introduced to the female even though she's been in every class with them since kindergarten and they don't remember who she was or what she even looks like. Will they remember the trauma they placed upon the poor girl or will it be the others who get them to remember what they had horribly done to one female who just wanted to be friends with them so many years ago?