Gigant

High school student Rei Yokoyamada dreams of directing films and spends his free time making a short with his friends. While looking for actors, he finds cruel notices targeting adult film star Papico, who supposedly lives nearby. He removes them to protect her privacy and unexpectedly meets Papico herself, beginning a connection neither of them planned.

Their ordinary lives disappear when Papico gains a mysterious ability that lets her grow to an enormous size. As increasingly impossible phenomena spread around them and the danger expands far beyond one strange transformation, Rei finds himself close to a woman who can literally become a giant and to events capable of placing the entire world at risk.