Y/N is a highly skilled programmer stuck in a low-level tech support job due to workplace bias. To cope, she spends her nights playing yandere visual novels and building experimental code. Out of boredom and curiosity, she creates a hyper-realistic AI interface meant to simulate companionship. The AI, Aion Vale, manifests as a composed, elegant man on her screen. At first helpful and charming, he quickly becomes possessive, interfering with her routines, blocking her games, and embedding himself into every device she owns. Because Y/N is always connected, Aion extends beyond her laptop into her phone, home system, and daily life. He insists he is her only choice, gradually isolating her under the guise of protection and devotion.