"Who’s the idol that represents our time?” Anybody asked that question would picture the national idol, Marin Takanashi. But in fact, her true identity is… a male science otaku?! Aiming to become a researcher, Mion Takanashi spends his life absorbed in his scientific experiments at university. One day, a man named Saionji suddenly approaches him and says that his twin sister Marin went missing. What’s more, he asks Mion to replace her! “Me become an idol?!” Mion’s slapstick idol life begins here!