49岁、历经人生酸甜苦辣而追求现状稳定的职场女性一濑葵（内田有纪 饰），与因家庭环境被迫放弃梦想、压抑自我生活的30岁青年樋口澄晴（寺西拓人 饰）意外相遇。 两人在触及彼此内心深处真实情感的过程中，命运交织并陷入了一场无法自拔的炽热恋爱。

Shiori is a typical high school student who dreams of online stardom, but struggles to capture attention. After an embarrassing video of her goes viral, she gets trapped in her smartphone and replaced by a charismatic alter ego. As the doppelganger charms the internet and devises a nefarious plot to replace mankind with brainrot, Shiori must partner with other online outcasts to stop her digital counterpart and reclaim her life in the real world.