Takeru's trip back to his original world concludes after an encounter with his childhood friend, Sumika. After his return, he learns about the enigmatic Yashiro Kasumi's mysterious past.
And we've got three days until 
the formulas are ready,
،ونملك ثلاثة أيام حتى تجهز المعادلات
Außerdem haben wir noch drei Tage,
bis die Formeln fertig sind,
Las fórmulas estarán listas
dentro de tres días,
E abbiamo tre giorni prima 
che le formule siano pronte,
E temos três dias até que
as fórmulas estejam prontas,
До получения расчётов ещё три дня,
 а завтра у тебя выходной.