Time, I had come to understand, was no longer my enemy.
It was my resource.
My weapon.
My domain.
Three to four hundred years.
That was my estimate.
Not a guess. Not a hope. A calculation—derived from everything I had learned about Merlin's seal, its adaptive nature, its layered structure across time, space, and reality itself. A prison that did not merely bind, but consumed, reinforcing itself with every careless use of power.
Brute force would never break it. Even infinite energy would only feed it further.
No—escape would require something far more precise.
And so, I prepared for the long horizon.
The castle had transformed over the centuries. What was once a place of confinement had become something else entirely—a sanctum of knowledge, a laboratory of impossible magic, a throne room for a queen not yet crowned. Every chamber held artifacts drawn from my soul, relics from distant worlds, tomes filled with ancient and forbidden knowledge. The air itself shimmered faintly with residual mana, dense and alive, responding to my mere presence.
At the center of it all, I stood—no longer the impatient girl who had clashed with Merlin in blind ambition, but something far more refined.
Far more dangerous.
My research divided itself into three pillars.
The first: the seal.
I studied it constantly, not with reckless attacks, but with careful observation. Threads of magic woven through dimensions, anchored in temporal constants, reinforced by self-adaptive logic that bordered on sentience. I traced its flow, its reactions, its consumption patterns. I learned what it accepted… and what it rejected.
Every century, I understood it more.
Every decade, I came closer to dismantling it.
The second: my magic.
All of it.
I had long since mastered the systems I once struggled to grasp. The techniques of Black Clover were no longer foreign concepts but second nature. Mana Zone extended effortlessly across the entire castle, granting me absolute dominion over all ambient energy. Mana Skin reinforced my body to the point where even catastrophic magical backlash meant little. True Magic allowed me to create real, tangible elements from nothing but environmental mana, while Ultimate Magic refined every spell into its most perfect, devastating form.
And Zetten—
Zetten had become something else entirely in my hands. No longer just a technique of compression, but a method of perfection, condensing infinite energy into singular, flawless expressions of power.
But it did not end there.
My grimoire—Julius Novachrono's Coverless Grimoire—remained ever-present, its countless pages orbiting me like silent witnesses to my growth. I studied it relentlessly, refining my understanding of time magic beyond what its original wielder had achieved. Chrono Stasis, Chrono Anastasis, acceleration, reversal—each spell was no longer a technique, but an extension of my will.
Time bent easily now.
Too easily.
And then there was the third pillar.
Myself.
The power of Touka Satomi had changed everything. Energy conversion had removed the final limitation that bound most magic users—the need for reserves, for restraint, for conservation. I could draw from the environment endlessly, refining raw energy into pure magical output with perfect efficiency.
There was no exhaustion.
No depletion.
No end.
But infinite power without control was meaningless.
Dangerous.
Self-destructive.
So I trained.
Not for strength—but for precision.
My Soul Gem hovered before me now, larger than it had once been, glowing with a steady, unwavering light. I reached out, fingers brushing against its surface, and felt the flow of my magic within it—stable, controlled, untouched by corruption.
Once, magical girls were bound by the inevitability of despair, their power a ticking clock toward their own destruction.
That law no longer applied to me.
I experimented freely.
Pushed limits that others could never risk.
Explored interactions between systems that were never meant to coexist.
Shadow magic intertwined with time manipulation.
Energy conversion fed directly into Ultimate Magic.
Annihilation Maker constructs reinforced through Mana Zone and accelerated through temporal manipulation.
Each experiment brought new results.
New possibilities.
New dangers.
And sometimes…
New creations.
A flicker of shadow stirred at my feet. I glanced downward, watching as a small creature emerged—sleek, humanoid, its form refined, stable, its existence sustained not just by imagination, but by carefully controlled energy input.
One of my newer designs.
Adaptive. Resistant. Evolving.
It looked up at me, silent, awaiting command.
"…Not yet," I said softly.
With a gesture, it dissolved back into shadow.
Even now, I restrained myself.
Because I understood something I hadn't before.
Power alone was not enough to win.
Merlin had proven that.
No—victory would come from understanding. From patience. From the ability to see beyond the immediate and act upon the inevitable.
Three hundred years.
Perhaps four.
It did not matter.
I turned my gaze toward the walls of the castle, where the unseen threads of the seal shimmered faintly beneath reality itself.
"I will break you," I said quietly.
Not with rage.
Not with force.
But with certainty.
And when that day came—
When the seal finally shattered and I stepped beyond these walls once more—
The world would not remember the girl who had been imprisoned.
It would remember what she had become.