Rent-A-Girlfriend follows Kazuya Kinoshita, a lonely college student who rents a girlfriend after a painful breakup, only to get tangled in a web of lies when his rental, Chizuru Mizuhara, keeps appearing in his real life. As fake dates turn into complicated emotions, family expectations and personal insecurities blur the line between acting and genuine feelings. The story mixes awkward comedy with slow-burn romance as Kazuya struggles to grow up and face his emotions honestly.