Uchiha bloodline + Indra's chakra + Nawaki's physique + Sakura's chakra control talent. Fortunately, Tsunade didn't know about Uchiha Hikaru's situation, otherwise, she would probably be shedding tears of envy.
Over the past three months, the opposing space has refreshed three times, but in these three instances, Uchiha Hikaru's luck wasn't as good as it was at the beginning.
First time: Kamui, Tears Unseen - Obito Uchiha
Final Battle - Kimimaro Kaguya
Fifth Raikage - Darui
Sound Four - Tayuya
Uchiha Hikaru had to admit that his strength was still a bit weak; even Obito Uchiha, who had just awakened his Mangekyo Sharingan, was not someone he could contend with at present.
Darui was, after all, the Fifth Raikage, and Uchiha Hikaru also couldn't defeat him.
When fighting Kimimaro Kaguya, Uchiha Hikaru had planned to stall for time. He remembered that during that battle, Kimimaro Kaguya was already terminally ill, so as long as he prolonged the fight, he might not be unable to defeat the opponent.
However, Uchiha Hikaru ultimately overestimated himself and underestimated Kimimaro Kaguya. This individual was capable of participating in battles with Orochimaru and the Fourth Kazekage, not someone he could deal with at his current stage. Even if he tried his best to stall for time, he was still easily defeated.
Uchiha Hikaru highly suspected that Kimimaro Kaguya likely possessed the strength of an elite Jonin.
Tayuya was easily defeated by Uchiha Hikaru, but he only gained the Four Black Fog Formation, a combined technique that was completely useless to Uchiha Hikaru. Not only did he have no use for it, but even if he did, Uchiha Hikaru could simply learn from Mito Uzumaki, a master of sealing jutsu.
In terms of sealing jutsu, few people in the entire history of the ninja world were superior to Mito Uzumaki.
Second month: Night of the Uchiha Clan Downfall - Itachi Uchiha
Legendary Sannin - Tsunade
Chunin Exam - Gaara of the Sand
Tragedy of the Era - Itama Senju
Itama Senju was Hashirama Senju's youngest brother, who was apparently ambushed and killed by five adult Uchiha clan members, and it was a brutal death.
Even Uchiha Hikaru had to admit that the Uchiha of that era indeed had many psychopaths. It wasn't just about killing enemy children like Itama Senju; if the opponent had already picked up a weapon, they were an enemy.
But they wouldn't even spare children from their own clan; Uchiha Hikari was a microcosm of the Uchiha of that era.
Of course, it wasn't to say that only the Uchiha had problems; if it were the Senju facing Uchiha children, they would also unhesitatingly take action to eliminate them.
Uchiha Hikaru was naturally no match for Itachi Uchiha, who had awakened the Mangekyo Sharingan; the gap between them was too vast.
Tsunade was from the period of the Sannin's famous battle, which was Tsunade a few years in the future. At that time, Tsunade had already been tempered on the battlefield, and her strength had greatly improved, so she was not someone he could contend with.
Itama Senju, on the other hand, was easily defeated by Uchiha Hikaru. Unfortunately, Uchiha Hikaru did not gain Itama Senju's physique, but rather his chakra reserves, which gave Uchiha Hikaru's chakra a slight boost.
Uchiha Hikaru lost to Gaara during the Chunin Exams.
If it were just Gaara, Uchiha Hikaru could still handle him, and even ended up winning. However, when Gaara saw that he couldn't defeat Uchiha Hikaru, he directly released the One-Tail, which was not something Uchiha Hikaru could contend with at his current stage.
Third month: Chunin Exam - Kiba
Descendant of the Yuki Clan - Haku
Chunin Exam - Neji Hyuga, Bird in a Cage
Akatsuki's Jade Maiden - Puppet Master Sasori
Defeating Kiba allowed Uchiha Hikaru to gain an affinity for canines. Haku, on the other hand, granted Uchiha Hikaru the ability to perform one-handed hand signs. Uchiha Hikaru not only mastered the essence of one-handed hand signs, but even his hand sign speed greatly improved.
Defeating Neji Hyuga took some effort for Uchiha Hikaru. Neji Hyuga during the Chunin Exams was essentially defeated by plot armor via Naruto; if not for the Nine-Tails' power burst, Naruto would have been no match for Neji at all.
Fortunately, Uchiha Hikaru's strength was also greater than that of an average Chunin. He spent some effort to defeat Neji and obtained the Gentle Fist Art: Eight Trigrams Sixty-Four Palms.
If Hiashi Hyuga and Hizashi Hyuga knew that Uchiha Hikaru, an Uchiha, used the Gentle Fist better than they did, who knows how they would feel.
However, the Gentle Fist Art was not easy for Uchiha Hikaru to use. Without the Byakugan's cooperation, he couldn't fully display the power of the Gentle Fist.
Uchiha Hikaru planned to integrate the Gentle Fist into his own combat system and develop his own unique fighting techniques.
He vividly remembered that Naruto and Kinshiki Otsutsuki both used Chinese martial arts; Kinshiki Otsutsuki used standard Baguazhang, and Naruto incorporated many Wing Chun movements.
Knowledge is never enough until you need it. Six Paths level combat is just that simple and unadorned.
Uchiha Hikaru deeply regretted not having mentioned these things before he transmigrated. Otherwise, with the combination of Chinese martial arts, the chakra system, and his cheat, wouldn't he be even more invincible?
As for Sasori, Uchiha Hikaru was directly defeated. A Kage-level expert, this was not someone he could challenge.
In the original work, Chiyo and Sakura Haruno jointly defeated Sasori, but it was more because Sasori himself didn't want to live. Otherwise, for their combination to defeat Sasori? It was a dream; it would have been good enough if they didn't directly give Sasori two kills.
However, not gaining many good things from the combat space doesn't mean Uchiha Hikaru's strength hasn't improved. In fact, he is still growing at a visible rate.
Not only did he develop Chidori, but he also learned many combat techniques from Tsunade. Even Mito Uzumaki didn't hide much from him; as long as he asked, Mito Uzumaki would patiently answer his questions.
Mito Uzumaki would even teach Uchiha Hikaru some of Madara Uchiha's combat techniques.
The person who understood Madara Uchiha the best was not Izuna Uchiha, but Hashirama Senju. The second best was Tobirama Senju. Tobirama Senju's study contained no less than a hundred ideas for countering Madara Uchiha; whether they were useful was up to individual interpretation.
Anyway, Madara Uchiha was already dead, so there was no possibility of verification.
Mito Uzumaki, through constant exposure, also learned many of Madara Uchiha's combat techniques, and she taught them all to Uchiha Hikaru.
As for whether Uchiha Hikaru could grow into a second Madara Uchiha, Mito Uzumaki herself wasn't sure. Anyway, helping Uchiha Hikaru become stronger was enough.
"Hikaru, are you planning to graduate early?" Nawaki suddenly asked Uchiha Hikaru out of the blue.
Nawaki's question made Tsunade and Kushina Uzumaki all turn their heads, wanting to see if Uchiha Hikaru was willing to graduate early.
"Yes, I suppose, but I plan to graduate next year. Why? Are you planning to graduate early?" Uchiha Hikaru didn't hide his thoughts. "Right now, my strength seems pretty good, but I'm still only six years old, and there's still a lot of potential to tap into."