In her five hundredth year of playing the Hydro Archon and bearing her secret alone, Furina quietly wept in the Palais Mermonia late at night. A voice claiming to be a “Companion Sign-in System” suddenly intruded into her mind and bound itself to her before she could refuse. From then on, her life gained a “companion” who could take shape, sign in, and keep her company. From a plate of exquisite macarons to a genuine Hydro Vision; from an hour spent together in human form to the unchanging warmth of daily companionship, her once heavy and lonely fate gradually filled with desserts, casual chats, strolls through Fontaine, and sunlight beyond the windows of the Palais Mermonia. This is a lighthearted story about how companionship melts loneliness and everyday life heals a long, drawn-out journey.