A freshman named Taichi Oota, an otaku who plays modern games, joins his high school's gaming club hoping to find his ideal place. To his surprise, the only other new member is Ageha Onisaki, a fashionable and outgoing gyaru who seems out of place in such a club. Any assumptions Taichi has are immediately challenged when Ageha eagerly challenges him to a match, but her console of choice is not the latest model; she brings out a classic NES, SNES, or Mega Drive.

The story follows Taichi and Ageha as they play a wide variety of video games together, from retro classics to modern titles, in the club room and at each other's homes. Their shared hobby reveals that Ageha, who first played games with her father, is a dedicated and knowledgeable retro enthusiast. Through their gaming sessions, they develop a strong connection and become more conscious of each other, forming the heart of the romantic comedy. The manga's initial premise compares old and new gaming experiences, such as different iterations of a puzzle game like Puyo Puyo, and explores their contrasting perspectives.

The quiet dynamic between the two freshmen gradually expands with the introduction of the club's upperclassmen, who form a secondary couple. Their presence adds depth to the club's social circle and provides additional comedic and romantic subplots. The narrative includes a variety of scenarios, such as a birthday outing for Ageha at a bowling alley and Taichi loaning her his Nintendo Switch to expose her to newer consoles. The manga's humor is rooted in video game culture, with jokes about searching for easter eggs, modding peripherals, and the quirks of both retro and modern gaming.

Throughout its run, the series balances episodic game-centric chapters with the slow-burn development of Taichi and Ageha's relationship. The story concludes with the manga ending at a natural point, though some readers have felt the final arc leading to the denouement was somewhat compressed after 57 chapters. The work finishes as a complete five-volume series that focuses on the genuine enjoyment two people find in each other's company through a shared passion for gaming.