Essence of Granted Desire
It is an essence that, once consumed, allows the being to absorb the very concept of wish fulfillment. At that moment, it becomes an inseparable part of their existence: soul, body, and energy adapt to channel it freely.
Once consumed, the bearer can materialize any wish expressed by another person, if they choose to do so. They cannot, and will not be forced to, accept anything that goes against their will.
Wishes can be physical, spiritual, or conceptual, but they must have a clear purpose and be understood by both parties (ambiguities like "I want everything" are not accepted).
By fulfilling a wish, the bearer gains the ability to copy all the abilities, powers, affinities, concepts, physiologies, etc., of the individual who expressed the wish. However, they must train and work from zero to develop that copy.
The bearer will not lose their personality because of what they copy.
The copied traits will, by default, lose their inherent limits and have their weaknesses removed.
Only one granted wish is needed to unlock the copy. After that, whether the bearer continues fulfilling wishes for that individual or not is entirely up to them.
They cannot copy the wish granted itself. Meaning, if someone wishes for immortality, the bearer can copy everything the person had before becoming immortal. Beyond that, the essence will not negatively affect the bearer outside its own rules; if the bearer gains immortality through their own means, it will be fully theirs.
The essence also grants them a body with unlimited potential, as well as talent that would make geniuses cry. This body allows them to use any type of energy and absorb everything they gain from their copies—in body, soul, and mind—without overloading.
Upon consuming the essence, the bearer can modify their physical appearance without restrictions. They can become the most handsome, the most masculine, or whatever they desire, but only in appearance: they cannot change their base physical or mental strength beyond human limits. However, they must remember that this does not grant "plot armor." If someone far stronger becomes interested in them because of those changes, they will have no way to defend themselves without personal power. Think before acting.
No fulfilled wish can harm or affect them, regardless of its magnitude or type.
If someone wishes for their death, weakening, or manipulation, not only can the bearer refuse to grant it, but those effects simply will not manifest. This immunity applies exclusively to the effects of wishes, not to physical attacks or harm unrelated to this power.
After absorbing the essence, they gain access to a dimensional space.
This space has two forms, and it does not matter if both are active at the same time:
the Castle of Desire and the Store of Wishes.
If they don't choose which one to use, they will have by default an almost limitless space they can modify as they please, able to activate the base forms at any time without erasing previous changes.
This space is not offensive and gives no direct combat advantages, but it can be used as a refuge, a training zone, or storage. They can create whatever their imagination allows within that framework. From a small pastry to eat, to a gravity room. There are no limits.
Castle of Desire
The form of the Castle of Desire will be (image attached in comments).
Store of Wishes
It is an impossible space, where the fantastical and futuristic coexist with a naturalness that defies all logic. From the outside it will look like an ordinary shop, but once the door is crossed the world changes: enormous shelves stretch upward as if ignoring gravity, carved with glowing patterns that pulse softly, as if breathing.
Books of all sizes float around, spinning in slow circles. These books contain general knowledge about worlds, not characters; meaning, if someone from Dragon Ball enters and sees a book referencing their origin, it will not show their personal story, but that of their world: cosmology, creators, general events, etc.
They are merely for passing the time, not for granting power, although they do provide understanding.
Among the crystal columns rise impossible machines: artifacts that mix ancient runes with iridescent circuits, towers of liquid light running through transparent tubes, and dimensional clocks whose gears turn in the opposite direction of time itself. From the ceiling hang enormous lamps made of suspended crystals that change shape and color depending on the visitor's emotional state, illuminating everything with a soft, warm glow.
Unfortunately, this magnificence is only appearance: an aesthetic form for others. The true power of the essence lies in the wishes.
No one can take away their dimensional space or their powers.
They are immune to any type of mental manipulation.
Time flows more slowly inside the dimensional space (approximately 1 external hour equals 1 internal day).
It is indestructible and the bearer can deny entry to anyone.
The dimensional space can connect to different fictional worlds: anime, movies, fan fics, novels, or series. There are no limits. At first, the connection will be random; the bearer can decide whether they want to interact with that world or not. If it does not appeal to them, they may attempt to reconnect, though it will still be random.
As they grow stronger, they will be able to choose the specific world to connect to, as well as return to worlds they have previously visited.