Sun-Hee was born within the Goguryeo sphere during the growing interconnectedness of the Silk Road era, when merchants, scholars, diplomats, priests, soldiers, and hidden powers increasingly moved between East and West. Even in youth, surviving records describe her as unusually disciplined, intellectually gifted, and intensely focused upon systems underlying the world around her.

While others pursued poetry, prestige, or courtly ambition, Sun-Hee studied anatomy, mathematics, astronomy, medicinal compounds, trade logistics, and patterns of organization. She believed the world could be understood if one observed it carefully enough.

Her reputation eventually drew the attention of western emissaries and merchants moving through the eastern trade routes. Among them traveled a vampire associated loosely with the Crimson Dominion, who became fascinated not with Sun-Hee's beauty or status, but with her mind. The surviving fragments suggest he viewed her as valuable acquisition: a scholar capable of strengthening the Dominion's increasingly expanding systems of war, medicine, and administration.

Sun-Hee herself believed she was being invited into something larger than ordinary life.

The transformation itself is preserved only in fragmented accounts. Some describe a ritual performed during the western journey itself. Others place the turning after her arrival near the eastern reaches of the old Roman sphere. What remains consistent is that Sun-Hee accepted the transformation willingly once she understood its implications. She did not fear immortality. She feared limitation.

Yet the reality of Dominion life proved profoundly different from what she expected.

The vampire who brought her west did not truly mentor her. Once delivered into Dominion territory, Sun-Hee found herself surrounded by younger vampires obsessed with hierarchy, political maneuvering, territorial conflict, and personal advancement. The Dominion possessed immense power, but little cohesion. Young immortals reveled in freedom, violence, and indulgence, often burning themselves out through arrogance long before they accumulated meaningful influence.

To many, this freedom felt intoxicating.

To Sun-Hee, it felt directionless.

During these early years, Sun-Hee's unusual abilities began manifesting visibly. Her body responded to injury, adaptation, and stress with increasing precision and fluidity. Wounds closed unnaturally fast. Internal structures shifted subtly under conscious control. She discovered she could alter muscles, connective tissue, and bodily composition deliberately, not through ritual or spellcraft, but through instinctive manipulation of her transformed biological state.

Most Dominion vampires found these abilities unsettling even by vampire standards.

Sun-Hee herself viewed them less as supernatural gifts and more as systems awaiting understanding. The body was no longer fixed. It was architecture.

The first time Sun-Hee truly understood the change was not during the turning, but months later, in a sparring pit on the edge of a Dominion enclave. A rival, a brutish warrior from the northern steppes, dislocated her shoulder with a sickening crunch. The pain was sharp, immediate, but beneath it, something else stirred. A cold, detached awareness. As she lay on the dirt, she didn't panic. She observed.

She felt the torn ligaments, the misaligned joint, the swelling tissue not as injury, but as a problem to be solved. She closed her eyes, not to block out the pain, but to focus on it. She visualized the joint, the muscles, the bone, and she pushed. Not with muscle, but with will. There was a wet, sliding pop, and the pain subsided into a dull ache. She stood up, rotated her arm, and the warrior who had gloated over her now stared in open fear. She had not healed. She had *corrected*.

This was the moment her fascination became her domain. The other vampires saw it as magic, a monstrous trick. Sun-Hee saw it as the first principle of a new science. The body was a machine. A broken, inefficient, poorly designed machine in its mortal state, but a machine nonetheless. And vampirism had given her access to mechanisms mortals were never meant to perceive consciously.

She began experimenting. She would make small, deliberate cuts and watch the skin knit itself back together, observing the process with a scholar's eye. She would hold her breath until her vision swam, not to test her limits, but to map the body's responses to oxygen deprivation. She learned to slow her heart, to thicken her blood, to alter the density of her own tissues. She was not a warrior. She was a researcher, and her own body was the laboratory.

This only deepened her frustration with the Dominion. They were masters of a machine they did not understand. They used their incredible bodies for brute force and petty dominance, like using a complex astrolabe to crack nuts. They had access to the most sophisticated biological system in existence and their only ambition was to hit things with it harder. Sun-Hee saw a universe of potential, a way to perfect the form, to eliminate inefficiency, to build the ultimate self. And she was surrounded by idiots who thought the peak of existence was a well-executed raid. She was a system builder trapped in a world of chaos, and she was desperately lonely.