Sex Secrets and Used Tech is a visual novel with elements of a workshop simulator, where the mundane routine of an electronics technician conceals layers of vices and forbidden data. The protagonist runs a used-tech shop that handles the smartphones of Suka City residents seeking repairs. During the repair process, the protagonist gains unlimited access to personal files, including encrypted messages and explicit photos. Analyzing digital fingerprints reveals clients vulnerabilities and turns a routine transaction into a tool for influence. Each refurbished phone becomes a key to information, revealing the true faces of the inhabitants of this vicious metropolis. Fulfilling orders gradually escalates into a dangerous manipulation of others' privacy.