Ichika and Masumi, anime siblings with a secret, indulge in their shared passion for 3D simulation games. In the neon-lit world of their latest find, their avatars mirror their real-life forms, leading them down a path of digital taboo. As their avatars entwine and explore each other's bodies in explicit detail, the siblings struggle to maintain the boundaries between fantasy and reality. The game's uncanny valley deepens, reflecting their own growing desires and confusing emotions.