Time is running out. The lies are not holding. When the truths comes out, can the four kids remain friends? Can Rikka stay on Earth, without messing with the space-time continuum?
I remember practicing 
multiplication tables with you,
Ich erinnere mich daran,
dass du mir das Einmaleins beibrachtest,
Recuerdo haber practicado
las tablas de multiplicar contigo,
Recuerdo haber practicado
las tablas de multiplicar contigo,
Je me souviens que tu m’as aidée
avec les multiplications,
Mi ricordo che stavo 
studiando le tabelline con te,
Eu lembro que você
me ensinou a tabuada,
Я помню, как мы с тобой
учили умножение,