The societal integration of Cybernetic Avatars (CAs) presents a range of legal, ethical, and regulatory challenges. While CAs have the potential to enhance human capabilities and promote social inclusion, their implementation remains largely unregulated, particularly in Japan. This paper examines the legal complexities associated with CAs, focusing on the ambiguity of their legal status and the uncertainty surrounding liability attribution. It underscores the necessity of establishing a fundamental legal framework to address these issues. This study advocates for the creation of a dedicated legal structure modeled after Japan’s Barrier-Free Act, emphasizing the importance of ensuring equitable access and responsible governance. Additionally, it explores the potential enactment of a Cybernetic Avatar Social Inclusion Promotion Act, proposing policies aimed at fostering inclusive participation and mitigating associated risks. Furthermore, the ethical dimensions of CA-mediated interactions, including identity authentication, algorithmic bias, and personal data protection, are analyzed. Establishing a foundational legal framework to address these regulatory gaps is essential for facilitating the ethical integration of CAs while balancing technological innovation with legal and societal safeguards.