Naruto: I start with one door, and I can open it infinitely.

On his 309th journey, he returned to Kusagakure.

The probability of getting the Grass Village character is really too low; on average, you're lucky if you get it once in ten tries.

Drawing the Grass Village is only the first step. The child he possesses must have ninja talent, and that talent must be at least Chunin level. Also, the timeline must be Karin's timeline; too early or too late won't work.

The three conditions for starting in Kusagakure are: a ninja with at least Chunin ninja talent, and Karin's timeline. It's extremely difficult to meet all three conditions at the start of the game; you only get one out of forty normal starts.

This time, I'm still an orphan, both my parents are dead, but I have the talent of a Chunin, which isn't too bad. Then, I need to determine the timeline.

After several days of inquiries and reading newspapers, he finally determined that the current timeline was Konoha year 53. He was one year older than Naruto, which was just right to start his plan, without having to graduate too early to do any dangerous missions.

Lying on the large communal bed in the orphanage, this was the third time he had slept here. He felt like he was home. He wondered if there was a child named Hugh in the orphanage. If there wasn't, he would find an unnamed orphan and rename him Hugh.

The reason he wanted to test the character "休" was because "休" was likely Kenta's code name within Root. Once he confirmed the other party's code name within Root, he could go to Orochimaru, join Orochimaru's forces, and obtain the cursed seal he had been longing for.

As time went by, he turned six. This time, he did not go to the street to inquire about information, nor did he expose himself to the old man Jian Tai. He only went to the street to make sure that the old man who ran the pet shop was still there.

Until this day, he was chasing his best friend down the street. The friend was running ahead, and he was chasing behind. The old man who owned the pet shop had his back to them. When he reached the old man, he imitated Danzo's deep voice and called out, "Huh..."

"Hi," the pet shop owner, Kenta, responded instinctively when he heard someone call out to him, only to realize something was wrong. How could Lord Danzo possibly be here?

He was about to get angry when he turned around to see who was calling his name.

Lin Chuan had already caught up with his friends and was running quite a distance, shouting to them, "Xiu, wait for me..."

"Phew," Old Man Jiantai breathed a long sigh of relief when he heard Lin Chuan call out to the child in front. These two children must be from the orphanage, since they were wearing ordinary linen clothes from the orphanage. He didn't take it to heart and just thought it was an accident.

Lin Chuan noticed the old man's response out of the corner of his eye. As he passed by the old man, he clearly heard the old man's response. It seemed that the pet shop owner's true identity was correct; he was a spy from the Root organization, codenamed Hugh.

Then things became simple. After he and his friends returned to the orphanage, when the ninja academy came to recruit them, he displayed his ninja talent and entered the ninja academy at the age of six.

His good friend, Hugh, lacked ninja talent and had difficulty refining chakra, thus missing out on the ninja academy, and they had to part ways.

As time went by, he grew steadily, practicing all the ninjutsu he had learned with all his might.

There's a reason he can boldly practice ninjutsu: during his time crossing Kirigakure, he learned the Hidden Mist Technique, which conceals vision, and often creates a large fog to cover the noise during training.

Six years passed quickly, and he graduated from the Ninja Academy. Under the cover of the Hidden Mist Technique, he practiced the Water Release ninjutsu he had learned many times.

Sometimes, out of sheer boredom, he even learned a Water Release: Water Fang Bullet, a ninjutsu scroll that he had stolen.

He spent another nine years in Kusagakure, not counting the year he spent adapting to his new body. He spent a full eight years reviewing the ninjutsu he had already learned. He grew much faster than the Chiba Rinkawa character he had transmigrated into before.

He could quickly master throwing kunai, and he could unleash ninjutsu after a few practice sessions. As for swordsmanship, he only needed to regain his previous muscle memory. The rest was about training his physical fitness and keeping up with his nerve reflexes as much as possible.

After eight years of training, he returned to his peak, even stronger than the novice character he had transmigrated to before, Chiba Rinchuan. With his current strength, if he were to bully the previous novice character, unless he could drag it out until his chakra was exhausted, the novice character would definitely die.

Because that account was already ruined from overtraining, its body was severely overdrawn and it was about to die. This account, on the other hand, was in good health. Because it had previous memories, it only needed to regain the familiarity of the previous battles and didn't need to push its body to its limits.

All you need to do is some regular training to allow your body to grow normally and adapt to your previous strength. You don't need to spend too much time learning and practicing ninjutsu and swordsmanship. As long as you train your body properly and maintain sufficient nutrition and sleep, you can master them.

When he turned twelve, he regained his previous Chunin strength. Considering his previous proficiency in using ninjutsu, he felt incredibly strong. However, due to the limitation of Chunin chakra reserves, he was still just a Chunin.

Because he has mastered a wide range of ninjutsu and swordsmanship, he can be considered a special jonin, but he doesn't see himself as one. Doing so would cause him to misjudge his own strength and make wrong decisions.

With the chakra reserves of a Chunin, he fights with the strength of a Chunin, leaving himself enough room for error to avoid a disastrous defeat. He runs away when he can, without needing to risk his life, since he can always start over and will only get stronger.

The following is the final form of all his ninjutsu and swordsmanship accumulated after multiple time travels...

Kun Wu Toss

[Kunai thrown 1,030,000 times]

[Shukaku technique, 1440 times]

fencing

[Sword Drawing Technique, 601, 100 times]

[Rank A Konoha-style swordsmanship, Crescent Moon Dance, 3120 times]

[S-rank Konoha-style swordsmanship, Secret Sword: Moon Shadow, 720 hits]

[S-rank Konoha-style swordsmanship, Liu, 860 times]

[Combined swordsmanship, combining the techniques of instantaneous movement and quick draw]

[Combined swordsmanship: Water Clone Technique + Body Flicker Technique + Draw Sword Technique]

[Combined swordsmanship: Crescent Moon Dance + Water Clone + Body Flicker Technique + Draw Sword Technique]

Space-Time Ninjutsu

[C-rank ninjutsu, Summoning Jutsu, Crow, 30 uses]

Illusion

[D-rank illusion technique, Naraku's Sight Technique, 660 uses]

Elemental-neutral ninjutsu

[E-rank Ninjutsu, Transformation Technique, 2140 uses]

[E-rank ninjutsu, Shadow Clone Technique, 2340 uses]

[Rank E Ninjutsu, Substitution Jutsu, 2800 uses]

[D-rank ninjutsu, Body Flicker Technique, 7240 times]

[Rank B Ninjutsu, Shadow Clone Technique, 5100 times]

[Rank A Ninjutsu, Shuriken Shadow Clone Technique, 87 times]

Water Release Ninjutsu

[D-rank ninjutsu, Water Release: Sailor Shroud, 940 times]

[D-rank ninjutsu, Water Body Flicker Technique, 2300 times]

[D-rank ninjutsu, Water Release: Hidden Mist Technique, 3800 times]

[C-rank ninjutsu, Water Release: Water Binding, 1400 times]

[C-rank Ninjutsu, Water Release: Water Whip, 1520 times]

[C-rank ninjutsu, Water Release: Water Clone Technique, 5320 uses]

[C-rank Ninjutsu, Water Release: Water Chaos Wave, 3100 times]

[C-rank Ninjutsu, Water Release: Water Prison Technique, 2120 uses]

[Rank B Ninjutsu, Water Release: Water Wall, 410 times]

[Rank B Ninjutsu, Water Release: Water Dragon Bullet, 399 times]

[Rank B Ninjutsu, Water Release: Heaven's Cry, 2011 times]

[Rank B Ninjutsu, Water Release: Water Fang Bullet, 320 times]

[Rank A Ninjutsu, Water Release: Water Severing Wave, 105 times]

[Combined Ninjutsu: Water Release: Water Prison Technique + Water Release: Water Clone Technique]

Because he was in Kusagakure, he concealed his true strength to the level of a genin, meaning he could only use the Three Body Techniques, Water Clone, and Water Rage Wave.

This is basically the normal level that a genin can reach a few months after graduating. It's just that he is good at using these ninjutsu and can basically cast them instantly. That is, before others can even see it, he has already replaced himself with a water clone.

With such strength, graduating from the Ninja Academy in Kusagakure would be no problem, participating in the Chunin Exams in Konoha would also be no problem, and finally, he would be able to make contact with Karin.

Having visited Kusagakure so many times, he had come to understand the true nature of these ninja. This made him afraid to openly approach Karin. Even showing her kindness by giving her half a loaf of bread would result in ridicule and ostracism.

This led him to stand by and watch Karin being bullied for so many years, which was unavoidable. He studied at the Ninja Academy, while Karin never had the chance to attend school, and they had very little contact with each other.

When news of the Chunin Exams coming to Konoha arrived, he, as a genin from Kusagakure, also had to participate in the Chunin Exams. The reason was the same as before: if ninjas from small ninja villages wanted mission slots, they had to make more appearances in front of powerful figures.

However, he ruined all his teammates' lives. When they were assigned to different classes after graduation, he saw that his two teammates were an idiot and a moron, so he directly ruined them during a mission.

Currently, there are only two people in the genin team: him and the jonin leading the team. If they want to participate in the chunin exams, they will need two more teammates.

In response, he directly bribed the Jonin leading the team, expressing his desire for the red-haired girl and asking Karin to be his teammate.

Upon hearing his request, the Jonin in charge immediately understood. Faced with the temptation of money, the greedy Jonin was tempted. After all, Kusagakure was just a small ninja village with few missions and even less money.

Now that there's such a good opportunity to earn extra money, the Jonin leading the team didn't want to miss it. However, he looked troubled, rubbed his fingers together, and said with difficulty, "Kawa, you know that girl is special. Many people are eager to team up with her. What do you think...?"

"Damn it, they want more money. They're all the same." Lin Chuan took out another small bag of money and threw it into the hand of the Jonin in charge. He bribed the Jonin with two bags of money in total, so that the Jonin could try to recruit Karin as a teammate.

"Hehe, I guarantee I'll handle it perfectly for you," the team leader said, looking at the two bags of money in his hand. He walked away excitedly, planning to go have a drink with some courtesans first.

Lin Chuan followed behind and saw the Jonin leading the team drinking and carousing. He knew that this guy was unreliable, but luckily he had a Plan B.

He went directly to the elder in charge of the Chunin Exams in Kusagakure, and his wife...

Then he took out a box of stolen jewelry, which instantly stunned the wife of the elder of the Grass Village. The elder's wife was actually a fat woman.

He slammed the treasure chest lid shut and smiled at the lady, "Beautiful sister, look how well these jewels suit you! Would you like some?"

"Yes, yes, I want it. Tell me, what do you want?" The elder's wife nodded emphatically. Her family was noble in the Grass Country, and it was her elder husband who took the initiative to pursue her.

At the time, her husband wasn't an elder of Kusagakure. He only became an elder after marrying her. Unfortunately, he was incompetent; the money he embezzled wasn't even enough for her to spend. He was a real useless man.

Lin Chuan took out a photo of Xiang Lin, gently placed it in front of the elder's wife, and pushed it towards her, intending to bribe this greedy fat woman.

"I like this girl, and I want to team up with her. Your husband is an elder in charge of this Chunin Exams, and I hope he can assign her to my team..."

"No problem," the elder's wife said, nodding in agreement when she saw Karin's photo and remembered that there was indeed such a medical ninja in the village.

However, she had one small request, and said shyly to Lin Chuan, "Little brother, could you praise your older sister one more time?"

"Damn it," Lin Chuan felt a chill run down his spine when he saw the fat woman staring at him lecherously, but he forced himself to say something against his will: "Sister, you're so beautiful. I'm going to take the Chunin Exams this time, and whether I pass or not depends on your arrangements..."

"Oh, little brother is so cute," the elder's wife stretched out her thick arms to hug Lin Chuan, but Lin Chuan dodged her with a teleportation technique.

Lin Chuan peeked out from outside the door, offering a gentle smile, and said goodbye, "Pretty sister, please take care of me. I need to prepare for the Chunin Exams, so I'll take my leave now..."

"What a mischievous little brother," the elder's wife wasn't annoyed that she hadn't managed to hug Lin Chuan. After all, there would be plenty of time in the future, and since Lin Chuan was a ninja from the Grass Village, they would have a chance to meet sooner or later.

She opened the box of jewelry again, and the room instantly shimmered with a rainbow of colors, dazzling the eye and captivating the viewer for a long time.

When her husband got off work, he saw that the fat woman was covered in expensive jewelry. He also received orders to arrange for Xianglin to join the Linchuan squad.

The elder husband had no choice but to obey the fat woman's orders. After all, it was he who took the initiative to marry the fat woman, which gave him the status of elder of the Grass Ninja Village. Otherwise, he would be doing odd jobs somewhere.

It wasn't that he was afraid of his wife; it was that her family was too powerful. If it weren't for her family's support, he wouldn't have been able to rise to power so easily. But he was just too humiliated and frustrated, so he could only silently endure it.

On the day before the Chunin Exams were set off, when the teammates were assigned, Lin Chuan's team needed to gather at the training ground, and Karin, who was so pretty, was assigned to Lin Chuan's team.

"Senior, I've only just become a genin, please take care of me." Karin had just become a genin and was about to participate in the Chunin Exams. She appeared timid in front of Lin Chuan, keeping her head down and not daring to look at him. She was completely unlike the fierce person she would become later.

"Raise your head, my name is Chuan. We've met before, and I even brought you food," Lin Chuan said, feeling somewhat helpless upon seeing Xiang Lin like this.

However, this is fine with Karin. When he later takes Karin to defect and find Orochimaru, Karin won't resist much. As long as she keeps quiet and cooperates with him to finish the act, that's fine.