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.
When we started the experiments,
،عندما بدأنا التجارب
Als wir mit den Experimenten begannen,
Al empezar el experimento,
Al empezar el experimento,
Quand l’expérience a commencé,
Quando abbiamo iniziato gli esperimenti,
Quando começamos os experimentos,
Когда мы начали эксперимент,