"Magic-kyun! Renaissance" is set in Hoshinomori Memorial School, a prestigious academy where students cultivate their artistic talents to create "Arté," a manifestation of their emotions and creativity. The story centers on Kohana Aigasaki, a transfer student who enrolls in the school's art department to pursue her passion for flower arrangement. She quickly becomes involved with the school's "Arté Masters," a group of exceptionally talented students specializing in various artistic disciplines, including painting, music, sculpture, and calligraphy.

The narrative unfolds as Kohana forms connections with the Arté Masters, each of whom embodies a unique artistic style and personality. These characters include Kanato Oe, a painter with a reserved demeanor; Rintaro Tsukishiro, a cheerful and energetic musician; Kaito Tōno, a sculptor with a rebellious streak; and Aoi Nishino, a calligrapher who values tradition and discipline. As Kohana interacts with them, she discovers the emotional depth behind their art and helps them overcome personal struggles, fostering mutual growth and inspiration.

The series explores themes of creativity, self-expression, and the transformative power of art. Each episode delves into the challenges faced by the characters as they strive to refine their skills and convey their emotions through their chosen mediums. The school's annual "Arté Festival" serves as a central event, where students showcase their talents and compete to create the most impactful Arté. Kohana's journey is marked by her determination to find her own artistic voice while supporting her peers in their creative endeavors.

The relationships between the characters are a key focus, with Kohana's interactions often leading to moments of introspection and emotional breakthroughs. The series balances lighthearted moments with deeper explorations of the characters' insecurities and aspirations, emphasizing the importance of collaboration and understanding in the artistic process. Through its narrative, "Magic-kyun! Renaissance" highlights the intersection of art and emotion, portraying how creativity can serve as a bridge between individuals and a means of personal growth.