"Kekkon × Renai" is a romantic comedy manga that explores the dynamics of relationships through the lens of marriage and love. The story centers on two main characters, Aoi and Riku, who enter into a marriage of convenience. Aoi, a pragmatic and career-driven woman, agrees to marry Riku, a carefree and easygoing man, to fulfill societal expectations and avoid the pressures of singlehood. Despite their contrasting personalities, the two navigate their new life together, gradually discovering the complexities of love and partnership.

The narrative unfolds as Aoi and Riku attempt to balance their personal goals with the responsibilities of marriage. Aoi, focused on her professional ambitions, initially views the marriage as a practical arrangement, while Riku approaches it with a more relaxed and optimistic attitude. Over time, their interactions reveal deeper layers of their personalities, leading to moments of humor, misunderstanding, and emotional growth. The story delves into themes of communication, compromise, and the evolving nature of relationships, as the characters learn to reconcile their differences and build a genuine connection.

Supporting characters, such as friends, family members, and coworkers, add depth to the story by providing external perspectives on Aoi and Riku's relationship. These characters often serve as catalysts for key developments, challenging the protagonists to reflect on their feelings and decisions. The manga balances lighthearted comedic moments with heartfelt scenes, creating a narrative that is both entertaining and thought-provoking.

As the story progresses, Aoi and Riku's relationship evolves from a transactional arrangement to a deeper emotional bond. The manga explores the challenges of modern relationships, addressing issues such as societal expectations, personal insecurities, and the importance of mutual understanding. Through its engaging plot and relatable characters, "Kekkon × Renai" offers a nuanced portrayal of love and marriage, capturing the complexities of human connections in a contemporary setting.