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Rei Yokoyamada, a high schooler whose father works for a film production company, is inspired to create his own short film with his friends. One day, while out to find actors, he spots tabloid-like notices that the adult film star Papico lives in his area. When he takes them down to protect her, he runs into the woman herself. Little does he know that Papico is about to get dragged into a strange, supernatural happening…where she grows to the size of a giant!
Koizumi Shintarou is 30 years old, a virgin, and has isolated himself in his room for 15 years. He has become a burden on his father, Koizumi Yasujirou. One day, Shintarou makes a proposition that if Yasujirou gets a girlfriend, Shintarou will come out of his room. It turns out that Yasujirou has already got a girlfriend, a young beautiful woman, Yoshinaga Haruka, who is with Yasujirou for her own personal reasons. Yasujirou and Haruka decide to get married, but Yasujirou dies on their honeymoon. Now Haruka decides to take care of Shintarou, and so this weird "mother and son" duo are now living together.
Ichiro Inuyashiki is down on his luck. While only 58 years old, his geriatric looks often have him written off as a pathetic old man by the world around him and he’s constantly ignored and disrespected by his family despite all that he’s done to support them. On top of everything else, his doctor has revealed that he has cancer and it appears that he has little time left in this world. But just when it seems things couldn’t get any worse, a blinding light in the night sky strikes the earth where Ichiro stands. He later wakes up to find himself unscathed, but he soon starts to notice that there’s something different about himself. However, it turns out that these strange, new changes are just what Ichiro needs to take a new lease on life and now it seems like there’s nothing to stop him from being a hero worthy of the respect that he never had before unless that is, there was someone else out there with these same “changes”.