In the context of the game produced by shizuka, "How do people become demons?" is a central question that drives the narrative. The game is set in a closed women's dormitory rumored to harbor "demons," and the player, part of a protection bureau, must uncover which of the two encountered girls is the demon. The process of becoming a demon in this game is not explicitly detailed in the provided information, but it seems to be a mystery that unfolds through conversations and clues gathered during the short adventure.
The game emphasizes a narrative-driven experience, focusing on interactions and dialogue to solve the mystery. Players engage with the environment and characters to piece together the story and determine the identity of the demon. The transformation or identification of a demon appears to be a thematic element explored through the gameplay and story progression, rather than a mechanic explicitly explained.
For a deeper understanding of how people become demons in this game, players would need to engage with the game's storyline and clues, as the process is likely integral to the unfolding mystery and the game's resolution.