Dark Notes is a dark mystery and puzzle game developed by Heartbeat Plus. Embark on an adventure that transcends space and time, delving into a meticulously arranged mystery filled with thrills and deception. As you navigate through the game, the truth serves as the riddle, and the motive is the answer, leading you into a trap the moment you believe it.

Experience a unique gameplay perspective with the dual-protagonist feature, allowing you to travel through time and space to uncover the hidden secrets of Happiness Mall. The game presents multiple versions of truth intertwined with challenging puzzles that provide a mind-twisting experience while advancing the storyline.