Hyde, a seasoned treasure hunter driven by insatiable curiosity for ancient relics, ventures into the town of Arville with Sakura, his fiercely loyal childhood companion. The nearby ruins—a sprawling labyrinth of caverns revered as the world’s largest underground network—anchor their quest. While navigating its shadowed depths, Hyde discovers a mortally wounded stranger who presses a cryptic amulet into his hands before perishing. The artifact lies dormant until, days later, it flares to life with an unearthly glow, irrevocably altering their path.

His bond with Sakura, forged through years of shared trials, underpins their partnership, blending trust and默契默契默契默契默契默契默契默契默契默契 (tacit understanding). The amulet’s awakening hints at dormant forces woven into the ruins’ history, though its true purpose and the shadows of Hyde’s past remain veiled, leaving threads of mystery coiled tight around their fate.