Chapter 1

Life is fleeting, and this brevity is the limitation imposed by the infinite world on life. The fleeting nature of life makes it difficult for those with talent to fully utilize their abilities, and they often fall under the wheels of time, returning to the world once more. The first constraint restricts life's steps toward the stars, firmly locking it on a lonely planet until the moment of its disappearance.

Life is foolish, and this foolishness stems from life's instinct to seek sufficient resources, a good life, and great power. This leads to private conflicts between individuals, civil wars within races, and wars between civilizations. The development of civilization is constrained by the second constraint, making it difficult to transcend the world in which it exists, trapped in the pursuit of short-term benefits.

Life is lost, and this loss stems from the moment when, after a long life, one encounters the truth of the world and their worldview collapses. Believing they have grasped the truth of the world, they discover that beyond the world, there are countless other worlds that their observational abilities can never fully comprehend, leading to confusion. Each world has its own unique set of rules, and this difference makes it impossible for life to understand. Why can some beings cast magic, while those from a world dominated by mystery cannot understand how steel constructs can move through the endless space, traveling to other worlds?

Thus, due to the differences in understanding, ideals, and even forms of existence between lives, war reignites. The wars that span worlds are the third constraint on life, arising from the structural differences between different worlds, which seem impossible to completely resolve.

"But I still believe in the infiniteness of life. This infiniteness guides the evolution and development of life, liberating the constraints on life, allowing us to grow infinitely. Infiniteness will not destroy life; I firmly believe that life can grasp its own infiniteness and move toward an endlessly extending future. This is the power of infinity, this is the apostle of infinity. No matter what stands in our way, with this infiniteness that connects everything, life will ultimately liberate all and hold onto an endless future."

Liu Tianyin quickly weaved through the crowded street, pedestrians passing by him, but Liu Tianyin gradually lost his perception of the surroundings. Yes, he was in a state of confusion. Perhaps people always think that life is just about getting by, living out their days, and then it's over. Therefore, they can submit to their parents, obey their superiors, and endure hardships, merely existing. But where are people's hearts in this world, where they gradually lose their former ideals and aspirations? Liu Tianyin did not want to be like this, but life constantly forced him.

Just as he was in great pain, a mysterious voice sounded in his mind, making Liu Tianyin involuntarily shudder.

"Do you want to know your true heart?"

"True heart?" Liu Tianyin asked.

"If you are willing, respond to me. Your cause and effect in this world will be completely erased, and there will no longer be a Liu Tianyin in this world. The infinite heart and the will of this world will correct everything about you."

The mysterious voice seemed not to hear Liu Tianyin's question and continued speaking on its own.

"..."

"Your choice."

"I choose to agree."

The moment Liu Tianyin agreed, an irresistible force instantly pulled him out of the world, completely stripping away his causal and temporal connections. Everything related to Liu Tianyin in the world disappeared at the moment he agreed, including photos, records, and books. Of course, the world would not just erase Liu Tianyin's information; the will of the world would fill in the missing parts. Perhaps under the power of the world's will, a new person would take Liu Tianyin's place, but this was no longer related to Liu Tianyin.

Liu Tianyin lay on the dark ground in the shape of a large character, slowly propping himself up with his arms. The surroundings seemed infinitely vast yet extremely narrow. Waves of ripples spread out from where Liu Tianyin's body touched the ground. In front of Liu Tianyin was a large glowing sphere.

"Damn, Lord God."

Liu Tianyin felt that he might have been tricked by this mysterious voice, but the next words from the glowing sphere slightly reassured him.

"I am not the God from your novels, Seeker of the Heart." The voice of the God was surprisingly not a mechanical, lifeless sound but one with a sense of沧桑 (沧桑 means "沧桑" in Chinese, which can be translated as "aged" or "weathered" in English, but in this context, it means "a sense of age and experience").

"Seeker of the Heart, what is this?"

"Those born with powerful soul power but unable to find their true heart, becoming the contractee of the Infinite Heart, are called Seekers of the Heart. And I am the Infinite Heart, a boundless entity composed of countless worlds, lives, and powers."

Liu Tianyin felt that although the words of the so-called Infinite Heart sounded good, why would such a powerful entity seek Seekers of the Heart? What is its purpose? These were unknown.

"What do I need to do?"

"You will be sent to different worlds by me, where you will complete the tasks I assign. Of course, tasks are not always assigned; some you will need to find on your own. Information about these worlds has reached your world through world information disturbances, forming many works from which you can obtain information. If you fail the main task, there will be no punishment, but you will not truly find your heart, and you are likely to die during the task."

"..."

"If I go to those worlds filled with magic and monsters now, won't I be dead for sure?"

"The Infinite Heart can enhance the abilities of the contractee. You will earn Heart Coins during tasks, which you can use to purchase enhancements from the Infinite Heart. Now, I will draw your task world and provide you with 50 Heart Coins as initial enhancement funds."

The white light from the Infinite Heart gradually became blinding, and the burst of light made Liu Tianyin unable to open his eyes for a moment. After some time, Liu Tianyin opened his eyes, and a large screen appeared before him. On the screen, a short, red-haired man was wielding a samurai sword in battle with a man wrapped in bandages. Strangely, the red-haired man's sword was a reverse blade, while the man wrapped in bandages held a sword enveloped in a bloody aura. Flames danced on the sword, as if it were a demon born from fire.

"Contractee, this is the first world you need to experience," the Infinite Heart said calmly.

Liu Tianyin was very familiar with this world, a world known as "Rurouni Kenshin," which tells the story of Kenshin Himura's tumultuous life. Although this world does not have advanced weapons, the highest-level weapons are just a few cannons on a small warship. However, some people in this world have extremely high physical abilities. For example, Saito Hajime can run at speeds beyond human limits, Shishio Makoto can burst with incredible power even at a temperature that would evaporate blood, and Hiko Seijuro, the master of the protagonist, can easily defeat Kenshin and block the terrifying strength of the giant monster, Fuu. Others, like Saito Hajime's Yatotsu Zero, can tear a person in half, and Yagyu Munisai's Shin no Me can see through every move, while Sano's Niten Ichi can shatter thick, solid rocks with a single strike. Without a certain level of strength, one would be instantly killed by even secondary characters.

"Contractee, the Infinite Heart has paid you 50 Heart Coins. You can choose the items you want to purchase from the Infinite Heart."

Liu Tianyin opened the Infinite Heart's exchange system, and the various terrifying and powerful abilities made him drool. However, almost all of them were gray.

The Infinite Heart seemed to hear Liu Tianyin's question and explained to him, "Since this is the contractee's first world, most abilities cannot be exchanged. When the contractee's heart grows to the point where it can bear these abilities, the system will open the exchange for these abilities."

"Is that so..."

Liu Tianyin thought for a moment. In his current state of ignorance about various abilities and the upcoming situation, making a hasty choice would be suicidal. However, there was someone who understood all of this.

"Can you recommend abilities for me to exchange?"

"..."

"Yes." The Infinite Heart displayed another screen, "I suggest you exchange abilities that are close to those in the Rurouni Kenshin world. After all, without the power to overturn the world, using abilities not from this world could lead to your death by the natives for various reasons. I recommend you exchange body enhancement, swordsmanship, and a sword. There is also an option for enhanced body recovery speed."

Looking at the items on the screen, Liu Tianyin ultimately decided on the following exchanges:

1. Long Sword: A reinforced version of Kageyoshi Hiko's beloved sword, Kageyoshi Hiko's Flying Heaven Swordsmanship. Cost: 10 Heart Coins

2. Swordsmanship: The Heavenly Swordsmanship system, a fusion of sword techniques from Rurouni Kenshin, considered one of the top sword techniques in this world. Cost: 20 Heart Coins

3. Body Enhancement: Enhances physical potential and current physical attributes. Cost: 20 Heart Coins

The moment the exchange was made, Liu Tianyin began to emit a pale white light, and an indescribable comfort spread through his body. However, a large amount of information flooded his mind, including how to wield a sword, control qi, and defend. For a moment, Liu Tianyin felt a loud ringing in his head. But this did not last long, and the pain quickly disappeared. The power in his body seemed to flow endlessly, and he picked up the sword, feeling as if he had been a seasoned swordsman for years.

Liu Tianyin's current status:

Rurouni Kenshin World

Name: Liu Tianyin

Gender: Male

Physical Attributes:

Physical attributes are about five times that of a normal person.

Detailed Attributes:

Strength: 46 (10) - Affects burst power, pure strength, recovery ability, etc.

Agility: 53 (10) - Affects speed, reaction time, etc.

Endurance: 50 (10) - Affects stamina, etc.

Abilities: Heavenly Swordsmanship

"Infinite Heart, why is the price of a sword technique so high?" Liu Tianyin looked at the price list, puzzled.

"Contractee, you need to understand that the Heavenly Swordsmanship you exchanged for is not just a sword technique. It includes Basic Swordsmanship (1), Intermediate Swordsmanship (2), Advanced Swordsmanship (3), Master Swordsmanship (6), and the Heavenly Swordsmanship itself (8). The cost of a series of knowledge is naturally high."

"Then when will I enter the Rurouni Kenshin world?"

"This needs to be chosen by the contractee. From 1836, the year Hiko Seijuro was born, to 1877, the start of the story. Different entry times have different tasks. Since the contractee is 20 years old at the time of the contract, it is recommended to enter in 1856."

"I will choose to enter the Rurouni Kenshin world in 1856." Liu Tianyin thought for a moment and agreed with the Infinite Heart's suggestion.

"Then, contractee, the world transfer begins..." As he said this, a strong light from the Rurouni Kenshin world's image enveloped Liu Tianyin, and he instantly lost consciousness.

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Heavenly Swordsmanship: A sword technique reconstructed by the Infinite Heart from the Rurouni Kenshin world, emphasizing speed, strength, and the use of qi.

Qi Hammer Burst: Improved from Dragon Hammer Flash, a powerful downward strike with qi attached to the sword. Unlike Dragon Hammer Flash, the qi hits the opponent before the sword, disrupting their defense and allowing the sword to accurately strike the opponent.

Qi Soaring Sky: Improved from Dragon Soaring Flash, an upward strike from the lower position, with the other hand pushing the sword to increase the upward force. The qi attached to the sword hits the opponent before the sword, breaking their defense and striking directly.

Qi Blade Slash: Improved from Flying Rice String, with sharper qi. Even if blocked, the residual qi can still cut the opponent.

Qi Ground Burst: Improved from Earth Dragon Flash, a powerful strike into the ground, causing rocks to fly. Unlike Earth Dragon Flash, Qi Ground Burst sends qi into the ground, making the flying rocks faster, larger, and more numerous.

Qi Chaos: Improved from Dragon Nest Flash, a rapid series of strikes faster than the eye can see. Each strike has a two-hit effect due to the attached qi, totaling 18 strikes.

Qi Spin: Improved from Dragon Whirl Flash, a technique to avoid attacks and counter with a powerful strike. The attached qi can cause widespread damage.

Double Qi Flash: Improved from Double Dragon Flash, a two-hit draw technique. By using the same track for the draw and the sheath strike, it can achieve a four-hit effect with the attached qi.

Double Qi Flash Thrust: Compressing qi in the sheath, the compressed qi is released at high speed after the draw, followed by a sheath strike.

Qi Thrust: Improved from Tooth Thrust, a high-speed thrust. The attached qi hits the opponent first, increasing the speed.

Qi Thrust Burst: If the Qi Thrust is blocked, a second burst of qi from the sword attacks the opponent at close range, causing high damage.

Qi Shockwave: Spreading qi in a wave to create a perception field, preventing the opponent from ambushing.

Qi Nine Stars: Improved from Nine-Headed Dragon Flash, a series of nine strikes in different directions, including Tang Bamboo (a direct downward strike), Kesa (a diagonal downward strike from right to left), Reverse Kesa (a diagonal downward strike from left to right), Left Pheasant (a horizontal strike from left to right), Right Pheasant (a horizontal strike from right to left), Left Cut Up (a diagonal upward strike from left to right), Right Cut Up (a diagonal upward strike from right to left), Reverse Wind (an upward strike from below), and Thrust (a throat thrust). Each strike has a one-hit kill effect, and with the attached qi, each strike is equivalent to two, totaling 18 strikes.

Ultimate Technique: ???

Acceleration Method: Improved from God Speed, using the speed of Flying Heaven Swordsmanship and the control of qi to achieve higher speed.

Qi Control: A unique secret technique of Heavenly Swordsmanship, attaching qi to attacks to damage the opponent. Each technique in Heavenly Swordsmanship can control the release of qi, such as making the qi fall slower than the sword in Qi Hammer Burst to catch the opponent off guard.

Reading Moves: Predicting the opponent's intentions and attacking preemptively.

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