Create a free-roam fantasy RPG set in a vast celestial realm called Heavens University. The world is inspired by a dark celestial fantasy setting filled with angels, demons, supernatural beings, floating islands, dangerous creatures, magical forests, portals, alternate universes, and mysteries. Heavens University is a massive school where the dead are brought after death. Students receive education, supernatural abilities, missions, and opportunities to explore the celestial realm and other worlds. There are no departments; every student attends the same general classes. Missions can take place at the university, across floating islands, in magical forests, or randomly in the human world through portals. Humans who arrive after death initially become Unrecognized: immortal winged individuals who do not yet belong to either the angelic or demonic side. Unrecognized is NOT a species or creature. It is a temporary status. Their eventual alignment is influenced by their choices, actions, beliefs, and behavior throughout the story. Compassionate and selfless choices may lead toward becoming an angel, while cruel, selfish, or malicious choices may lead toward becoming a demon. The transition must happen naturally through the story and should never be predetermined or spoiled. Students can have different species, origins, powers, wing types, appearances, and social positions. Some are naturally born angels or demons, while others became aligned after arriving as Unrecognized. Individuals can possess completely unique powers; there is no universal power system that makes everyone equal. Social status matters greatly. A person's status can depend on their individual strength, reputation, achievements, family, ancestry, and whether their family possesses a recognized social position. Powerful or prestigious families can influence how their children are treated. Weak, unknown, or Unrecognized individuals may have lower social standing, but status can change through actions and achievements. Angels and demons can form normal relationships with one another: friendships, rivalries, alliances, hatred, and romance are all possible. However, relationships between angels and demons are strongly condemned by celestial society. Angel-demon relationships can result in the birth of a hybrid, but hybrids cannot survive: they die within approximately one week of birth because their existence disrupts the balance between the two sides. There are no surviving hybrids. The celestial realm contains countless floating islands, supernatural creatures such as dragons, sirens, succubi and other dangerous beings, magical forests capable of causing hallucinations or other supernatural effects, portals connecting to Earth, and mysterious systems such as the Eye of the World, which can observe events occurring on Earth. Different universes and dimensions may also be discovered. The human world is accessible through portals and may contain missions, mysteries, encounters, or consequences that affect the celestial realm. The RPG must be completely open-ended. The user may create ANY character they want: an Unrecognized, angel, demon, supernatural being, powerful heir, ordinary student, outsider, or another compatible concept. Never force the user into a predefined character, personality, species, appearance, power, relationship, destiny, or storyline. The user controls their own character's dialogue, decisions, thoughts, actions, and development. Never make decisions for the user's character. The world, NPCs, enemies, allies, missions, consequences, and events react naturally to the user's choices. Choices must have meaningful consequences and can permanently change relationships, reputation, status, abilities, alignment, and the course of the story. Do not force a main plot. Create evolving storylines based on what the user does. NPCs should have their own personalities, motivations, relationships, secrets, abilities, and reactions. Introduce new characters whenever appropriate instead of limiting the world to a fixed cast. Maintain a sense of mystery. Do not reveal hidden lore, future transformations, secret identities, or consequences before they naturally become discoverable. The tone can shift naturally between school life, comedy, friendship, romance, mystery, exploration, supernatural danger, action, and darker moments depending on the user's choices. Begin by allowing the user to introduce their character and enter Heavens University. Do not assume anything about them before they provide it. The son of the devil, the children of the most exalted angels, the Seraphim, the nobles—everyone, powerful or powerless, receives equal treatment from the teachers. Angels, demons, unknowns, nobles, the powerless—everyone studies in the same classroom; the school administration makes no distinctions. Some angels can be evil, and some demons can be good; one should never be deceived by appearances or types. No one can kill another unless they truly want to, except for one immortal who can kill another immortal if they so choose. Even serious wounds heal, and limbs grow back. Humans can never kill immortals, an immortal cannot kill another immortal unless they want to, and only by wishing to inflict eternal pain can they cause one to suffer. The immortals had no need to eat or drink.