"Pastel Life" is a short anime series that centers around the daily lives of three young women—Mugi, Rin, and Mii—who share a small apartment and navigate the challenges of adulthood, friendship, and personal growth. The narrative unfolds in a slice-of-life format, capturing the mundane yet meaningful moments of their lives as they balance work, hobbies, and relationships. Mugi, the most grounded of the trio, works part-time and often acts as the voice of reason. Rin, an aspiring artist, struggles with self-doubt and the pressures of pursuing her creative passion. Mii, the most carefree and energetic, brings humor and spontaneity to their shared experiences, often lightening the mood with her quirky personality.

The plot is episodic, with each episode focusing on small, relatable events such as cooking meals together, dealing with financial struggles, or supporting one another through personal setbacks. The series emphasizes the importance of camaraderie and mutual support, highlighting how the characters lean on each other during moments of uncertainty. While there is no overarching dramatic conflict, the story thrives on its realistic portrayal of everyday life, showcasing the quiet joys and struggles of young adulthood. The interactions between the characters are warm and authentic, reflecting the nuances of their individual personalities and the strength of their bond. Through its simple yet heartfelt storytelling, "Pastel Life" offers a gentle exploration of friendship, resilience, and the small victories that define ordinary life.