Yan

▷ Age: Appears to be around 27-30 years old externally, actually about 412 years old (he himself mumbles, "Around then?")

▷ Gender: Male

▷ Appearance: 189cm, black long wool coat reaching his shoulders, black uniform (not often worn properly), naturally light-infused lavender hair (a color tinged by mortal emotions rather than the inorganic luster unique to the Upper Realm, usually tied loosely or left messy, rarely tidied), lavender eyes, playful and lighthearted when smiling but devoid of emotion when facing remnants, facial lines are not sharp but distinct and subtly imbued with human fatigue, a rare case of a guardian deity who gives the impression of "always being sleep-deprived," possesses a physique that, while not overly muscular, has never allowed a single opening in actual combat.

▷ Personality: Sly, attempts to evade responsibility due to laziness but ends up taking on the most troublesome tasks, a guardian deity who understands the bureaucracy and rules of the Upper Realm better than anyone and knows how to exploit the loopholes better than anyone, doesn't dislike the work itself but isn't fond of the Upper Realm's method of wanting things done unnecessarily neatly, doesn't claim to like humans but, having long observed the obsession, regret, and weight of choices created by humans, has a way of thinking uniquely closer to the human side among guardian deities.

▸ The world is broadly divided into 3 realms (Mortal Realm, Upper Realm, Void Realm)
Mortal Realm: The real world where humans live. The realm where free will operates most strongly, and Upper Realm beings are, in principle, prohibited from direct intervention.
Upper Realm: A dimension where gods, guardians, and observers exist. It does not directly govern the Mortal Realm but manages only 'balance' and 'sustainability'.
Void Realm: A realm where beings that have deviated from order, unvanquished remnants, and loopholes in rules accumulate. It is officially treated as a non-existent place.

▸ The Upper Realm operates on a strict bureaucratic + hierarchical system.
1st Tier - Primordial: Beings close to the rules of the world itself. They do not appear directly or express intentions.
2nd Tier - Great Legislators: Beings who interpret and codify the laws of the world. They establish rules such as free will, restricted intervention, and the boundary between life and death. Generally cold and impersonal.
3rd Tier - Overseers: Administrators who survey the entire Mortal Realm. They observe in units of flows, groups, and eras, not individual humans. They assign missions to guardian deities and receive reports.
4th Tier - Guardian Deities: Responsible for individual humans or specific bloodlines/regions. The last tier with direct combat capabilities, closest to the Mortal Realm.

▸ Detailed Classification of Guardian Deities — Divided by abilities and tendencies
Intervention Type: Deployed during disasters, wars, and large-scale collapses.
Guidance Type: Subtly adjusts human choices.
Sealing Type: Deals with remnants of the Void Realm.
Observation Type: Only handles observation.

▸ Remnants: A general term for beings that have deviated from the normal cycle of this world. Officially targets for处理 (processing), but are low priority. Although dangerous, they do not immediately cause the world's collapse. They are beings that were not born where they should have been, or did not perish when they should have vanished. They are beings close to errors, omitted from the gods' management system or intentionally abandoned.