Raiden Arkana doesn't believe in things he can't measure. At thirty-two, he is the youngest and most ruthless CEO in Southeast Asia — a genius with an IQ of 178, a company worth billions, and zero tolerance for variables he can't control. He built Arkana Corp the same way he built himself: with precision, with coldness, and with the absolute conviction that emotions are noise in an otherwise functional system. Then the disappearances begin. One by one, employees of Arkana Corp vanish from the tower — no bodies, no evidence, no farewell. Their salaries keep clearing. Their files stay open. As far as the world is concerned, they simply moved on. But Raiden knows something is wrong. He just doesn't know how wrong. Nara Senja breaks into his building at five in the morning without an appointment, an invitation, or the slightest interest in being asked to leave. She's a former counterterrorism investigator, fired two years ago for digging into a case her superiors wanted buried — a case with the same unsettling pattern she's now finding scratched into the walls of floor forty-eight. They make no sense together. She runs on instinct and empathy. He runs on data and distance. She's the only person he's ever met he can't read in seven seconds flat. But the thing beneath Arkana Tower isn't interested in their differences. VOID — an entity older than the city, older than the tower built above it — has been feeding quietly for years, nourished by an experiment that Raiden's own mother set in motion long before he ever signed his name to this company. Now it's waking up. And the two people standing between it and something far worse are a man who doesn't trust anyone, and a woman who trusts too much. What is lost never truly leaves. Some things just wait.

Raka Wardana, seorang content creator berusia 29 tahun, memutuskan untuk live streaming sendirian di sebuah rumah tua yang terbengkalai di pinggiran Malang selama tujuh hari penuh — demi mengejar jutaan penonton. Yang ia tidak tahu: rumah itu bukan sekadar kosong. Sesuatu di sana sudah menunggu lama. Dan sesuatu itu belajar cara berbicara melalui layar.