As the saying goes, the benevolent see benevolence, the wise see wisdom. As for the vulgar, they naturally see vulgarity. No matter how many excellent qualities Rin inherited from her original self, her otaku perspective from her previous life was undoubtedly very vulgar. In the eyes of a very vulgar person, the entire world is vulgar!
And the Moon World is inherently a very 'dirty' world (an 18+ game world, how can you say it's not 'dirty'?), so Rin now sees everyone as 'dirty'... Of course, that's impossible. If everything is 'dirty', is there any value left in this world? It might as well explode.
Rin is currently just an older sister with a sister complex, experiencing delusions born from her protective instincts towards her younger sister.
And Matou Kariya is, without a doubt, a good person in the true sense of the word.
"Hmph, Kariya, if you dare to lay a hand on my sister, I'll make you die even more miserably than in the original story..." Rin muttered under her breath.
Overall, the outing was quite enjoyable. The four of them played in the park until evening before parting ways.
Watching Kariya wave goodbye to them through the car window, Rin waved back from inside the car, thinking, "I will prevent the tragedy of Sakura being adopted into the Matou Family. That way, you won't have to participate in that tragic Holy Grail War either."
After dinner, Rin seriously said to Tokiomi, "Father, I have memorized the basic theories of magic, and I've also completed the creation of magic jewels, storing a year's worth of power in crystals. Please officially teach me magic!"
After a moment of thought, Tokiomi led Rin to the underground magic workshop. He took about twenty tomes of sorcery from the bookshelf and placed them in front of Rin, stating solemnly, "Rin, these books are all your courses for the next ten years. Besides the theoretical knowledge you must master, they are all low-level magic with low danger, practical use, and the ability to train your magic control. What Aoi said today reminded me that you are engaging with magic far too early. Over-developing your potential now would only burn away your future."
Rin looked at the stack of books as tall as herself and nodded in understanding.
Tokiomi smiled with satisfaction, nodded, and patted Rin's head. "If Rin doesn't understand anything, come ask me anytime. Never act recklessly."
"Yes, I understand, Father."
The path of a Magician is essentially about seeking knowledge and contemplation. No one can truly help on this path; Tokiomi can only guide Rin so she doesn't go astray, but he cannot dictate how she walks it. And Tokiomi no longer has much time to instruct Rin, because the Holy Grail War is not far off.
Rin rummaged through the pile of books and quickly found what she wanted: Reinforcement.
Projection Magic requires Reinforcement and Illusion as prerequisites, but the existence of Illusion magic is actually optional, because Projection Magic projects objects constructed by inner fantasy. Illusion, rather than being a prerequisite, is more accurately a form of training for fantasy construction.
Reinforcement itself is not a magic, but a magic power characteristic, an artificial technique that imbues magic power with a specific trait, just like the Tohsaka Family's conversion of magic power into jewels. Magic power characteristics are not limited to one; in fact, first-rate Magicians master multiple magic power characteristics.
Even the Conversion characteristic is not exclusive to the Tohsaka Family; the famous Finnish magic family, the Edelfelts, are also proficient in Conversion. And Zelretch the Jewel, the founder of the Tohsaka Family's magic, would certainly know it. Reinforcement, however, is a very common type.
The actual effect of the Reinforcement characteristic is to strengthen the qualities of the target. When magic power with the Reinforcement characteristic is injected into fire magic, the fire burns more intensely; when injected into water magic, the water's volume and flow rate surge; when injected into a plant, the plant grows extremely fast.
But if the target has multiple qualities, there are more choices. For example, if you reinforce a steel pipe, you can strengthen its hardness or its ductility; if you reinforce an arm, you can strengthen the arm's hardness to make it impervious to blades and guns, or you can strengthen the muscles to increase strength; you could even strengthen its flexibility to tie a bow with your arm.
In short, this is a very versatile and widespread magic power characteristic, basically mastered by all Magicians.
Rin swiftly flipped through the entire book on "Reinforcement," her eyes like lightning, memorizing everything at a glance. The concept of creation, detailed operations, specific examples, and key points were all imprinted in her mind. She activated all her Magic Circuits to convert Greater Magic Power, and after circulating it through all 473 Magic Circuits in her body, she directed the magic flow to her right arm.
Then, in Rin's consciousness, an analytical diagram of her right arm formed. The diagram had several hollows, each representing a quality. Consciously injecting magic power into a specific hollow would reinforce that quality. The reinforcement effect would be determined by the amount of magic power injected and the inherent quality of the target itself.
Beginners can only reinforce one quality at a time, and the efficiency is quite low. After becoming proficient, two can be reinforced. Those skilled in this art can generally reinforce four. Someone like Emiya Shirou, who uses this as his magical foundation, can reinforce about seven qualities, essentially achieving comprehensive reinforcement.
However, Rin, using Finale Magic Power, felt that she could reinforce arbitrarily, with absolutely no limit on the number!
After injecting an amount of magic power equivalent to a small, miniature spell into the hollows for "hardness" and "strength," her right arm immediately surged with an inexhaustible, almost explosive power, and a metallic sheen appeared on the surface of her skin.
Rin tried punching the air. Driven by the immense power, her small fist struck and retracted with lightning speed. A sonic boom echoed in the air! The vibrating air formed a ripple-like pattern on her retina.
The reinforcement effect only lasted for five seconds. After five seconds, both the power and the metallic sheen disappeared.
That single punch instantly generated at least 800 kilograms of impact force. However, if I hadn't reinforced its hardness, my skin would likely have been scalded or torn by friction with the air after that punch. If that punch had struck an object and failed to penetrate it, the recoil force would have twisted the internal bones and muscles of my arm into a knot, and even my internal organs would have been shaken, with a risk of internal bleeding.
No wonder Reinforcement seems useful but few people actually use it. Single-aspect reinforcement disrupts the target's balance, causing the reinforced quality, which far surpasses other characteristics, to collapse on its own because the target itself cannot withstand it. And if multiple qualities are reinforced but not all of them, then the unreinforced qualities become fatal flaws, the most obvious weak points.
Therefore, to use Reinforcement effectively, one must achieve comprehensive reinforcement of the target! But in this world, besides a certain good-for-nothing Tsuchimikado who only knows this one trick, who has the time and effort to painstakingly research Reinforcement?
However, this magic, which seemed utterly useless, completely transformed in Rin's hands. Driven by Finale Magic Power, all spell formulas were automatically perfected to their extreme, completely skipping decades or even centuries of research, delving, training, and effort. She directly reaped the ultimate result: unlimited reinforcement of all qualities, generated with the highest magic power conversion efficiency.
This is the power of Finale, directly receiving the fruit of all processes!