Essence of the Granted Desire:
It is an essence that, once consumed, allows the being to absorb the very concept of wish fulfillment. From that moment on, it becomes an inseparable part of their existence: soul, body, and energy adapt to channel it freely. This essence is part of the Source of Essences, a source located beyond any known scale of power, even beyond the omnipotent, omniscient, and omnipresent. No cosmological, conceptual, or external entity, regardless of its hierarchy or nature, can detect, alter, suppress, block, or prevent the use of this essence or the Source from which it originates.
Once consumed, the bearer can materialize any desire expressed by another person, if they so choose. They cannot and will not be forced to accept anything against their will. Desires can be physical, spiritual, or conceptual, but they must have a clear purpose and be understood by both parties; ambiguities such as "I want everything" are not accepted.
Upon fulfilling a desire, the bearer gains the ability to copy all abilities, powers, affinities, concepts, and physiologies of the individual who expressed the desire. However, they must train and work from scratch to develop that copy. The bearer will not lose their personality due to what they copy, and the copied traits will by default lose their inherent limits and have their weaknesses eliminated. Only one granted desire is needed to unlock the copy; from then on, whether the bearer continues to fulfill desires for that individual or not is entirely up to their choice.
The bearer cannot copy the granted desire itself. If someone desires, for example, immortality, the bearer can only copy everything that person possessed before becoming immortal. Beyond that, the essence will not negatively affect the bearer outside of its own rules; if the bearer obtains immortality through their own means, it will be fully theirs.
The essence also grants a body with unlimited potential and a talent that would make geniuses weep. This body allows the use of any type of energy and the absorption of everything obtained from copies—in body, soul, and mind—without overloading. Upon consuming the essence, the bearer can modify their physical appearance without restrictions, able to become the most attractive, the most masculine, or whatever they desire, but only in appearance: they cannot change their base physical or mental strength beyond human limits. This does not grant plot armor; if someone much stronger takes an interest in them due to these changes, they will have no way to defend themselves without their own power.
No fulfilled desire can harm or affect them, regardless of its magnitude or type. If someone desires their death, weakening, or manipulation, not only can they refuse to grant it, but such effects simply will not manifest. This immunity applies exclusively to the effects of desires, not to physical attacks or damage unrelated to this power. The bearer is also immune to any type of mental or soul manipulation.
Additionally, the essence allows the bearer to grant themselves a single personal desire, which is non-repeatable. This desire cannot directly increase their power, strength, energy, authority, or hierarchy by more than two ranks above their current level, nor can it grant omnipotence, omniscience, or omnipresence, or direct functional equivalents. The Source of Essences rejects any desire that causes narrative collapse, absolute paradoxes, or endings without process. Omnipotence cannot be fixed as a state; it can only be achieved through existence, accumulation, and journey.
The bearer's personal desire can be of an ontological nature, altering their relationship with reality without imposing supremacy. This type of desire can allow them, for example, to become undetectable to entities with negative, hostile, or murderous intentions, or to be accepted by a specific world as someone who has always existed in it without contradictions or alterations to key events. The Source accepts this type of desire along with something that partially increases your strength because they do not break the world's structure or impose authority, but rather close cracks before they open and preserve coherence.
However, these ontological desires do not grant absolute immunity. Their function is to prevent the immediate elimination of the bearer upon entering a specific world. Once inside, if the bearer acts hostilely, directly interferes with superior entities, or draws the conscious attention of a being that decides to eliminate them, they can die, even if from the world's perspective they have always existed there. Ontological coherence does not protect from the consequences of decisions.
After absorbing the essence, the bearer gains access to an indestructible and non-transferable dimensional space, which no one can access without their permission. This space can manifest as the Castle of Desire or the Shop of Desires, or both forms at once, without erasing previous modifications. It is not an offensive space nor does it grant direct advantages in combat, but it can be used as a refuge, training area, or storage, allowing the creation of anything the bearer's imagination permits within that framework.
Within the dimensional space, time flows more slowly: approximately one external hour equals one internal day. The space can connect to various fictional worlds—animes, movies, fanfics, novels, or series—without known limits. At first, connections will be random, and the bearer can decide whether to interact with the world or not; over time and with their growth, they will be able to choose specific destinations and return to previously visited worlds.