When the era of full-scale artificial intelligence arrives, what challenges must we confront? The moment technology becomes part of everyday life, the concept of Electronic Personhood is no longer a matter of imagination — it is an immediate reality. A consilient masterpiece where legal thriller and essential knowledge converge. This book centers on the concept of “Electronic Personhood” proposed by the European Parliament, exploring whether artificial intelligence can be recognized as a legal entity — examined through social, ethical, and legal lenses in a thoroughly consilient approach. Part 1 unfolds as a courtroom narrative set in the near future, a society where Electronic Persons have emerged, vividly portraying the collisions, questions, verdicts, and emotional undercurrents that arise between humans and AI. Standing at the boundary of technology, law, and humanity, readers are compelled — amid tension and intrigue — to reflect directly on the identity and meaning of the Electronic Person. Part 2 offers a systematic account by the author — an engineer from KAIST and Samsung, and a licensed U.S. attorney — of how the concept of Electronic Personhood must be integrated into the broader structure of society. It spans issues from creative rights, invention rights, tax obligations, criminal liability, and the right to family formation, all the way to concrete legal scenarios addressing whether Electronic Persons can bear the same rights and duties as humans. For those working in the AI industry, this provides an indispensable conceptual foundation; for policymakers, educators, students, and readers preparing for the society to come, it offers a clear framework for thinking. The future of technology arrives alongside human decisions. Rather than empty discourse, this book presents a substantive discussion of the possibilities and ethical boundaries of Electronic Personhood, along with a policy roadmap. A rare work where science and the humanities, law and narrative converge within a single volume, it captures the defining keywords of an era that can only be read about now. The Electronic Person is already here. It is now our turn to ask what it means to live alongside them.