Dan Da Dan: First Encounter

Momo Ayase is a high school student tired of life after the breaking with her first boyfriend, an insentitive bully guy. Desperate to find a real man like her idol, actor Ken Takakura, by chance she meets another student (named as the actor), a shy guy who was reading a magazine about UFOs and aliens. Trying to talk with him, it starts a discussion confronting their personal beliefs (she believes in ghosts but not in UFOs, while he believes exactly the opposite) which ends in a personal duel: he will go to a haunted place and she to an alien abduction point to determine who is wrong. However, things couldn't go worse: she is abducted by Serponians, an alien race looking for women to procreate after the absence of girls in their homeworld; and he is cursed and possessed by an evil ghost, Turbo-Granny. A cell phone calling between them in the right time causes that a possessed Ken emerges through the cell phone to battle Serponians, saving Ayase. Feeling responsible of him, Ayase promises to find the way to liberate him of the curse...if the rest of ghosts and aliens don't kill them before.