Yu-No Episode 1

Takuya's world was turned upside down when his father died in a tragic research accident. Concerned for his young stepmother, Ayumi, he decided to follow her to Ken Point. There, hidden behind a rock, he watched Ayumi and her best friend Mitsuki. Suddenly, a blinding flash of light appeared, revealing an otherworldly beautiful woman. Before Takuya could react, she slipped a mysterious ring onto his finger, catapulting him into a parallel universe. This ring became the key that connected Takuya to his various realities, blurring the lines between what was and what could be.