"Kibun wa Keijijō" is a manga series that explores the complexities of human emotions and relationships through its central narrative. The story revolves around a young man named Haruto, who struggles with a peculiar condition: his emotions are constantly in a state of flux, shifting unpredictably from one extreme to another. This condition, which he refers to as being "above normal," makes it difficult for him to maintain stable relationships or a consistent sense of self.

Haruto's life takes a significant turn when he meets Aoi, a reserved and introspective girl who seems to possess an uncanny ability to understand and stabilize his emotional turmoil. Aoi's calm demeanor and empathetic nature provide Haruto with a sense of grounding he has never experienced before. As their relationship deepens, the series delves into the intricacies of their bond, exploring themes of emotional vulnerability, trust, and the search for identity.

The narrative is further enriched by the introduction of secondary characters, each grappling with their own emotional challenges. Among them is Riku, Haruto's childhood friend, who harbors unspoken feelings for him, and Yuna, a spirited and outspoken classmate who becomes a source of both conflict and support for Haruto. These characters add layers to the story, highlighting the diverse ways in which people cope with their emotions and the impact these coping mechanisms have on their relationships.

As the series progresses, Haruto and Aoi's relationship is tested by external pressures and internal doubts. Haruto's condition becomes a focal point of tension, as he struggles to reconcile his fluctuating emotions with his desire for stability. Aoi, in turn, must confront her own fears and insecurities, particularly her reluctance to fully open up to others. The narrative examines how their individual struggles intersect and influence their dynamic, creating a poignant exploration of human connection.

"Kibun wa Keijijō" balances moments of introspection with scenes of everyday life, capturing the ebb and flow of emotions in a way that feels both relatable and profound. The series does not shy away from depicting the messiness of human relationships, presenting its characters as flawed yet deeply human. Through its exploration of emotional instability and the quest for understanding, the manga offers a nuanced portrayal of the challenges and rewards of forming meaningful connections.