Natsu no Arashi!(2009)

Natsu no Arashi! is an anime series following thirteen-year-old Yasaka, who encounters the enigmatic Arashi while staying at his grandfather's house during summer vacation. After rescuing her from a man sent to capture her, Yasaka brings her home, where she becomes an unexpected houseguest. He soon discovers that Arashi is no ordinary girl—she possesses mysterious supernatural powers. When Yasaka uncovers a sixty-year-old photograph showing Arashi alongside another girl named Kaja, both frozen in time, the mystery deepens. Kaja's sudden appearance confirms the impossible: neither woman has aged a day in six decades. As Yasaka unravels the truth behind their immortality, he's drawn into a world of secrets and supernatural intrigue that transforms his quiet summer into an extraordinary adventure.