"Rose Tea de Hajimaru" centers around the life of Risa, a young woman who inherits a small, struggling tea shop from her late grandmother. The shop, named Rose Tea, is known for its unique blend of rose-infused teas, but it has fallen into decline due to competition and changing tastes. Risa, who initially has no interest in running the business, reluctantly takes over after her grandmother’s passing. As she begins to learn the intricacies of tea-making, she discovers a hidden journal left by her grandmother, filled with recipes, personal reflections, and the history of the shop.

The narrative unfolds as Risa attempts to revive Rose Tea, facing challenges such as financial difficulties, skeptical customers, and her own lack of confidence. Along the way, she meets a diverse cast of characters who influence her journey. Among them is Haruto, a local chef who becomes her mentor and helps her refine her tea-making skills. Their relationship evolves from a professional partnership to a deeper connection, adding a layer of emotional depth to the story. Another key figure is Yumi, a childhood friend who returns to town and offers both support and occasional conflict as Risa navigates her new responsibilities.

The plot is driven by Risa’s efforts to modernize the shop while staying true to her grandmother’s legacy. She experiments with new tea blends, hosts events, and gradually builds a loyal customer base. The story also delves into themes of family, tradition, and personal growth, as Risa learns to balance her own aspirations with the weight of her inheritance. Flashbacks to her grandmother’s life provide context for the shop’s history and deepen the emotional resonance of Risa’s journey.

As the series progresses, Risa faces a pivotal decision when a large corporation offers to buy the shop. This conflict forces her to reflect on what Rose Tea truly means to her and the community. The resolution of this dilemma ties together the themes of perseverance, identity, and the importance of preserving cultural heritage. The manga concludes with Risa finding her own path, blending tradition with innovation to ensure the shop’s future.