Junichi Hashiba, a high school student, feels pressured by his peers to lose his virginity and experience romantic relationships. Despite his efforts, he struggles to connect with girls due to his awkward personality and lack of confidence. His life takes a turn when he impulsively confesses his feelings to Yame Yukana, a fashionable and popular gal who is often misunderstood due to her appearance and demeanor. To his surprise, Yame agrees to go out with him, marking the beginning of an unconventional relationship.

As Junichi navigates his new relationship with Yame, he faces challenges stemming from their differing personalities and social statuses. Yame, though initially perceived as a typical "gal" with a carefree attitude, reveals a more thoughtful and caring side, often supporting Junichi despite his frequent misunderstandings and insecurities. Their interactions are marked by comedic misunderstandings, romantic tension, and moments of genuine connection, as Junichi learns to see beyond Yame's outward appearance and understand her true self.

The series introduces a supporting cast of characters who add depth to the narrative. Junichi's friends, including the perverted Keigo Ishikawa and the shy Nene Fujinoki, provide comedic relief and occasionally complicate Junichi's relationship with Yame. Meanwhile, Yame's friends, such as the confident Ranko Honjō and the reserved Shizune Fujinoki, offer insight into her world and challenge Junichi's preconceptions about gals and relationships.

Throughout the story, Junichi and Yame's relationship evolves as they confront external pressures and internal doubts. Miscommunications and societal expectations often create obstacles, but their bond grows stronger as they learn to communicate and trust each other. The series explores themes of self-acceptance, the complexities of teenage relationships, and the importance of looking beyond stereotypes.

The narrative balances humor with moments of sincerity, portraying the ups and downs of young love in a relatable and entertaining manner. While the story primarily focuses on Junichi and Yame's relationship, it also touches on the dynamics of friendship, peer pressure, and personal growth, making it a multifaceted portrayal of high school life.