"Ōgaki Matsuri ni Ikō yo!" centers around a group of high school students in the rural town of Ōgaki, known for its vibrant and historic festival. The narrative revolves around their efforts to revive the declining popularity of the local festival, which has been a cornerstone of the community for generations. The protagonist, a reserved yet determined student named Haruto, takes the lead in organizing the event after learning about its cultural significance from his grandmother, a lifelong resident of Ōgaki. Alongside Haruto are his classmates, including the energetic and resourceful Aoi, the meticulous and tech-savvy Riku, and the artistic and introspective Yuna. Each character brings unique skills and perspectives to the project, reflecting their personal connections to the town and its traditions.

As the group begins planning, they face numerous challenges, including dwindling community interest, logistical hurdles, and internal disagreements. The story explores their growth as they navigate these obstacles, learning to collaborate and appreciate the value of their shared heritage. The festival itself serves as a backdrop for themes of perseverance, cultural preservation, and the importance of community bonds. Throughout the series, the characters interact with various townspeople, including elderly residents who share stories of past festivals, local business owners who provide support, and skeptical peers who initially doubt the project’s feasibility. These interactions deepen the narrative, highlighting the intergenerational connections that sustain the town’s identity.

The climax of the series occurs during the festival, where the group’s hard work culminates in a vibrant celebration that draws both locals and visitors. The event not only revitalizes interest in the festival but also strengthens the students’ sense of belonging and purpose. The story concludes with a reflection on the enduring impact of their efforts, leaving the future of the festival and the town’s traditions in capable hands. The series balances lighthearted moments with emotional depth, offering a heartfelt portrayal of small-town life and the power of collective action.