Konoha returns to the year 2023, but finds that the Akiba that she knows and loves no longer exists. With a middle-aged Mamoru as her only ally, can Konoha figure out a way to un-change history?
You may be an old man, but you 
haven't changed, even a little!
!لربما أنت كبير في السن، لكنّك لم تتغير قطّ
Aus dir ist zwar ein alter Mann geworden,
aber du bist immer noch derselbe Mamoru-kun.
Aunque seas un viejo,
no has cambiado nada de nada.
Aunque seas mayor,
no has cambiado ni un ápice.
Tu as vieilli,
mais tu restes le même.
Sei invecchiato,
Virou um tiozinho, mas
não mudou nem um pouco!
Ни капли не изменился,
хоть и стал стариком!