Harry Potter: I Have A mastery System

Catherine, Angela, Penelo Crevat, Anna, you are my little wives, Carlos said with a smile.
The four Catherine girls smiled excitedly and agreed.
Carlos took their hands and said seriously: "From now on, when I am the king, you will be the princess. When I become the god, you will be my concubine, serving in the harem."
"My dear, it's time for us to take the last step." Catherine held Carlos' big hand and walked towards the bedroom with great momentum.
Carlos smiled and nodded, motioning for Angela and the three girls to follow.
Penelo and Ana pulled Angela to follow Carlos. They couldn't miss this important opportunity.
In Carlos's bedroom, under the colorful glazed lights, he gradually removed the equipment from Penelo and others one by one.
…
"Ding, the host gets the first blood of Penelo Crevat, which rewards 10 skill points and 100,000 universal proficiency points."
"Ding, the host and Penelo Crevat practiced double cultivation once, and gained 10 points of universal proficiency, and dual cultivation skill proficiency +1
"Ding, the host and Penelo Crevat practiced double cultivation once, and gained 10 points of universal proficiency, and dual cultivation skill proficiency +1."
"Ding, the host gets Anna's first blood, and is rewarded with 10,000 points of universal proficiency."
"Ding, the host and Anna will practice double cultivation once, and gain 10 points of universal proficiency, and double cultivation skill proficiency +1."
"Ding, the host and Anna will practice double cultivation once, and gain 10 points of universal proficiency, and double cultivation skill proficiency +1."
"Ding, the host and Catherine will practice double cultivation once, and gain 10 points of universal proficiency, and double cultivation skill proficiency +1."
"Ding, the host and Angela practiced double cultivation once, and gained 10 points of universal proficiency, and dual cultivation skill proficiency +1."
"Ding, the host and Penelo Crevat practiced double cultivation once, and gained 10 points of universal proficiency, and dual cultivation skill proficiency +1."
…
----
Time gradually passed as Carlos happily improved his proficiency in dual cultivation skills.
The next day, a huge luxury villa was built in Alice's manor.
This was specially prepared by the Lucifer family for wizards who might appear in their family in the future. Count Mele Lucifer spent a lot of effort to build it using various precious materials.
Carlos accepted this place unceremoniously and even moved his bedroom here.
In addition to Penello and several female cultivators, he studies and tries various magics with them every day. The entire villa is located in a remote and very strong place.
It won't affect the family at all, and any curse that destroys a 'restoration as before' will be solved.
After the four Penellos and Carlos moved to this villa, they became more and more bold, not letting Carlos go even during the day.
Carlos unexpectedly discovered that the magic rules of this world are very interesting. Standard spoken language and movement of signs. As long as you have magic power, you can trigger the effect of the spell through the wand.
Of course, there is also the so-called wandless magic. Carlos' telekinesis, which means moving coins and destroying objects out of thin air, falls into the scope of wandless silent magic, which is a relatively high-end one, but the way he used to use it was rough!
In just a few days, Carlos, with the help of Penelo and Ana, was like a sponge, absorbing the spell crazily, reciting the password of the spell, and finally successfully cast it.
The four girls Carlos and Penelo, with the help of the proficiency system, began to frantically try various magics and cast various spells in succession.
I am afraid that among the senior wizards, any student of the entire age group with single-round destructive power will not be Carlos's opponent.
Even during the past few days of practice, Angela and Catherine were able to overwhelm lower-level wizards simply by relying on the telekinesis they inherited from Carlos.
Of course, even if they were practicing carefully, they were just helping Carlos practice his skill proficiency.
According to Penelo, her current strength is not limited to Carlos's drastic change, and she can already become Ravenclaw's senior prefect.
Carlos still remembers the resentful look in Penello's eyes at that time, and for this he severely taught Penello that he could not get off the ground for several days.
Under the crazy experiments of Carlos and others, one or two explosions can always be heard in the courtyard of the villa every day. It seems a little late today!
boom!
The pure white marble on the ground was exploded into pieces of rubble. Amidst the rain of falling rocks, a plume of green smoke rose into the sky.
Just now, a pot of boiling potion exploded due to an attempt to replace it with something else. The place used to cook the potion was destroyed by the strong sulfuric acid-like potion!
"Clean it up!" Carlos raised his wand and swiped it lightly. He looked up at the blue sky and sighed. Now, the thick smell of medicine is gradually evaporating.
Because Carlos randomly tried various potions, some cleanup workers dug out piles of mass graves for rats in the suburbs outside the city.
Carlos walked over to the table to examine the cause of the error and systematically video-recorded the experiment, just like a dedicated researcher.
But the +1 to his medicine proficiency he just gained betrayed this serious expression.
In just two months, the original large amount of potion materials had been squandered, and school was about to start.

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