大人少年 is a dynamic project unit founded by choreographer and dancer Toshihei Mitani. Dedicated to exploring the realms of dance, theater, and visual arts, the brand transcends conventional genre boundaries to create innovative works that emphasize "boundary" and "sympathetic bodily expression." With a focus on fostering a deep connection with language, space, and the physical body, 大人少年 invites performers from various disciplines—including dancers and actors—to collaborate and enrich its creative process.

Since its inception, the brand has actively integrated verbal and performative elements into their choreographic projects, resulting in a unique and collective approach to creation. Recent works have showcased themes developed through dialogues with participants, highlighting the importance of collaborative creativity in the crafting of each production. 大人少年 is committed to pushing the limits of artistic expression while maintaining a keen sense of proximity to the audience, making each performance a distinctive experience to remember.