Office worker Otono Hana has secretly continued to harbor feelings for her high school ex-boyfriend, Aoto, who now works as the vice president of her company. After her father accumulates a debt, Hana gets caught doing a secret side job to pay it off, only for Aoto to discover her. Instead of exposing her, Aoto—who also happens to be a popular social media influencer—makes a startling proposal: he will pay her one million yen a month if she agrees to pretend to be his girlfriend and start a couples YouTube channel with him.

The story follows Hana as she navigates this fake relationship for the cameras while managing her unresolved real feelings for Aoto, who remains an enigmatic and seemingly calculated figure. The narrative tension stems from the contrast between their polished on-screen personas and the off-screen memories of their awkward high school breakup, which involved a mortifying incident where Hana ran away from him during their first time. As they film content and play the part of a happy couple, the lines between performance and reality begin to blur.

The series is set against the backdrop of corporate office life intertwined with the high-pressure world of content creation, exploring themes of financial desperation, second chances at love, and the modern phenomenon of manufactured intimacy. Over the course of sixteen volumes, the story follows the development of their relationship, with Aoto revealing a protective and indirectly caring nature beneath his cool exterior, while Hana struggles to gain the confidence to confess her true feelings and break down the emotional walls between them.