"Konkatsuku" centers on the life of a young man named Haruto, who finds himself thrust into the world of matchmaking after inheriting his late grandfather's struggling marriage consultation agency. The agency, Konkatsuku, specializes in helping clients find love through unconventional methods, blending traditional matchmaking with modern technology. Haruto, initially reluctant and inexperienced, must navigate the complexities of relationships while managing the agency's eccentric staff and diverse clientele.

The narrative explores various romantic scenarios, each focusing on different clients with unique challenges and backgrounds. From shy individuals struggling with self-confidence to career-driven professionals seeking companionship, the series delves into the intricacies of human connection. Haruto’s growth is a central thread, as he learns to balance his own insecurities with the responsibility of guiding others toward happiness. Along the way, he encounters recurring characters, such as his childhood friend Aoi, who provides emotional support, and the enigmatic consultant Rika, whose sharp insights often challenge Haruto’s perspectives.

Themes of self-discovery, societal expectations, and the evolving nature of love are woven throughout the story. The agency’s success hinges on Haruto’s ability to adapt to the changing dynamics of romance, often requiring creative solutions to match clients with compatible partners. The series balances humor and heartfelt moments, offering a nuanced portrayal of the challenges and rewards of matchmaking. As Haruto becomes more adept at his role, the agency’s reputation grows, attracting a wider range of clients and deepening the exploration of contemporary relationship dynamics.