A threat from Acqua against Kamijo leads Itsuwa to come to Academy City as his live-in bodyguard. Index, Kamijo and Itsuwa visit a spa in the third level of the complex beneath the 22nd School District. Mikoto frets over Kamijo's amnesia.
I completely forgot that we're underground.
.نسيت أنّنا تحت الأرض تمامًا
Da vergisst man komplett,
dass das alles unterirdisch ist.
Olvidé que estamos bajo tierra.
Olvidaba que estamos bajo tierra.
J’avais oublié
qu’on est au sous-sol.
Mi ero completamente dimenticato 
di trovarmi sottoterra.
Esqueci completamente
que estamos no subsolo.
Тут и не вспомнишь,
что мы под землёй.