Genji Hazama is a scientist employed by Shu Izumi, Kotori Izumi's father. His sudden and unnatural death occurs early in the narrative, acting as a catalyst for the main events. This tragedy compels his son Shin Hazama to relocate and live with his uncle Tetsuya. The ambiguous circumstances of Genji's demise create a narrative void that shapes Shin's emotional trajectory and propels the exploration of parallel worlds. Genji's background in scientific research connects him to the underlying mechanisms enabling alternate realities, though his specific contributions remain undefined.