YESTERDAY

Released in 1990 by System House Oh, this title is a fantasy RPG that follows the adventures of Sonia, a space scout who finds herself traveling backward through time in the "Nothing Zone," a dark abyss of space. The game is notable for its unique presentation, featuring side-scrolling field screens that immerse players in a grand, unknown world. Among PC-8801 software of the era, it remains a memorable title for its ambitious fusion of science fiction and fantasy themes.

In the year 24109 of the cosmic calendar, Sonia heads to the "Nothing Zone" at the center of the universe—humanity's final frontier—only to be caught in a mysterious vortex of light that destroys her ship and separates her from her crew. After hurtling through space and time, she awakens in a strange, uncharted world. As Sonia, the player must explore this alien environment to uncover clues that may lead back to her own era. Thus begins a grand journey to determine her fate in a world where science fiction and fantasy collide.