Twenty‑year‑old university student Kazuya Kinoshita was happily in love with the radiant Mami Nanami. Suddenly, without warning, Mami ended their relationship, leaving him devastated and alone. To ease the ache, he booked a rental girlfriend through an online service. His date was Chizuru Mizuhara, whose striking beauty and sweet manner won Kazuya"s heart.
After reading other clients" accounts of Chizuru, he began to suspect that her affectionate smile and caring attitude were merely a façade designed to manipulate him. He gave her a low rating, prompting Chizuru to rebuke his hypocrisy and reveal her sharp, fiery side. Their one‑way argument was interrupted when Kazuya discovered that his grandmother had collapsed.
They hurried to the hospital, only to find her already stable. Confused by Chizuru"s presence, the grandmother asked who she was. On impulse, Kazuya declared that they were lovers, forcing Chizuru to adopt the role. Yet with his mind still fixated on Mami, how long could this reluctant client and unwilling rental girlfriend sustain the pretense? He tried to explain that the breakup had left a void he could not fill, but Chizuru remained skeptical. Meanwhile, the grandmother"s gentle questions about his life added pressure to maintain the charade. The night grew tense as both parties struggled between truth and performance.
