"Koi to Yobu ni wa Kimochi Warui" centers on the relationship between Ryo Amakusa, a successful and confident 30-year-old businessman, and Ichika Arima, a reserved and diligent high school student. The narrative begins when Ichika, working part-time at a café, encounters Ryo, who becomes infatuated with her. Despite Ichika's initial discomfort and reluctance, Ryo persistently pursues her, blurring the lines between genuine affection and inappropriate behavior. The story explores the complexities of their dynamic, as Ichika struggles to reconcile her growing feelings with her unease about the age gap and Ryo's assertive approach.

Ryo's character is portrayed as charming yet manipulative, using his wealth and influence to insert himself into Ichika's life. His actions often challenge societal norms, raising questions about power dynamics and consent. Ichika, on the other hand, is depicted as a responsible and introspective individual, grappling with her emotions and the moral implications of their relationship. The narrative delves into her internal conflict, as she navigates her attraction to Ryo while questioning his intentions and the appropriateness of their connection.

Supporting characters, such as Ichika's protective friend Yuzu and Ryo's business associate Kaede, add depth to the story by providing contrasting perspectives on the central relationship. Yuzu serves as a voice of caution, highlighting the potential dangers of Ichika's involvement with Ryo, while Kaede offers insight into Ryo's past and motivations. The series balances moments of tension and introspection with lighter, comedic elements, creating a multifaceted portrayal of the characters and their interactions.

The plot progresses through a series of encounters and conversations, gradually revealing the complexities of Ryo and Ichika's relationship. Themes of love, power, and societal expectations are woven throughout the narrative, prompting reflection on the nature of romantic connections and the boundaries that define them. The story does not shy away from addressing the controversial aspects of the central relationship, instead presenting them as integral to the characters' development and the exploration of their emotions.

"Koi to Yobu ni wa Kimochi Warui" offers a nuanced examination of an unconventional romance, focusing on the emotional and ethical challenges faced by its protagonists. The series maintains a steady pace, allowing for a thorough exploration of the characters' motivations and the evolving dynamics between them. Through its engaging narrative and well-developed characters, the manga provides a thought-provoking portrayal of love and the complexities that accompany it.