In a fractured reality where memories manifest as physical entities, players take on the role of Case, a memory-weaver tasked with retrieving stolen emotions that shape identities. Guided by artifact memories, players navigate through warring factions of different emotions — Joy, Sorrow, Fear, and Anger — each with their own unique quests and dramatic narratives. As Case uncovers the truth behind the heart he must reclaim, he faces intense moral dilemmas, tests of loyalty, and the ultimate question: what does it mean to truly own one's heart?