Human.Noah no Koe

A boy named Kanata hears a girl calling for help during a night marked by unusual weather reminiscent of the night his parents died. He finds the girl, who recognizes him despite his lack of memory of her. Just as he attempts to help, she dies or appears to vanish in his arms. The following day, the same girl shows up at his school as a new student, acting affectionate toward Kanata while keeping others at a distance. Questions arise about how she survived, why she is targeting Kanata, and the true nature of her actions.