Moved by Tatsumi’s efforts to accomplish her goal all by herself, Mirai decides to help her even though she's still in the middle of her mission.
Actually,
the day before my mom died…
...في الواقع، قبل وفاة أمّي بيوم
A dire la verità, il giorno prima che lei morisse
Na verdade, no dia antes
de minha mãe morrer,
Знаете, за день до кончины мамы…