Alright, so here i go. Yujiro, basically the composite Bakiverse. Thanks to this, i'll not only be refering to his skill feats but also to the skill feats and techniques he upscales to.
First the main stuff. Dude mastered every martial art that exists and even ones that existed centuries ago (implicitly saying he never got to have actual contact with them), and masters even martial arts that need more than a century of hard training to fully master with a glance at them being used in battle. Even ones that need extreme body control, such as Xiao Lee (it's explained how it works
here and you can see it being used in
this fight, i recommend reading it all), are flawlessly mastered by Yujiro in a few seconds of observation. Yujiro's pressure points are so precise he can
make people faint with a slight tap. He's so skilled the first person that ever managed to touch him was
Motobe , another martial arts genius like everyone on the Bakiverse. The likes of 13yo Baki could already flawlessly predict the movements of masters of diverse martial arts, Yujiro not only massively upscales from that but also has his own feat of predicting an entire fight based on the stance of the fighters. 15yo Baki was considered the absolute king of the Tokyo Dome Underground Arena, where even the most "average" of fighters
effortlessly curbstomped Rickson Gracie in skill (who, in the Bakiverse, has a 700 winstreak in professional fighting). 18yo Baki could dodge attacks similarly to
Yasuri, that is, with movement so minimal it seemed like the attacks were phasing through him. 18yo Baki could also do
this while in Yujiro's benda that makes blood come through all your body openings, while also making all your blood go to your brain, basically ******* you up immensely. Baki is also the maker of many other extremely skillful feats i'm forgetting as of rn because i'm not a machine that can perfectly remember more than 800 chapters of people beating each other up.
About the other characters Yujiro upscales from, we got people such as Retsu Kaioh, Doppo Orochi, Goki Shibukawa, Musashi Miyamoto, and some others.
Doppo Orochi is known as "the sun of karate" and "god of war", being a 10th Dan in the Shinshinkai Karate style he created himself. His analytical prediction is so perfect he could see through Dorian's hypnosis that makes the other fighter fight against an extremely weaker Dorian that doesn't actually exist. In reality, the opponent is just fighting against the air. He was affected by the hypnosis, but his AP was so good that even then it worked, defeating the real Dorian in the process. Orochi is a user of the technique "Sangan", created centuries ago. It requires perfect control of the eyes' sinew, as such it's extremely hard to utilize. Doppo Orochi is also the creator of the technique he defines as a "perfect Seiken". Because, even if he did that move thousands of times everyday of his life for the past 50 years, he recognized it would never be a truly perfect Seiken (medium punch shot from the waist, one of the basic karate moves). The Seiken, for him, was only a 99.99999999... (get, like, 4 or 5 paragraphs of nines here) % version of the true Seiken punch, the Bodhisattva Fist he created. This can be seen
here(6:30 to 9:10, i couldn't find the manga scans, sorry) and other feats i'm forgetting as of rn.
Kaku Kaioh is the creator of the Xiao Lee style. The dude not only has mastered Xiao Lee, what is obviously extremely difficult for what i said earlier, he also knows many forms of Chinese Kenpo not even the likes of Retsu Kaioh have ever seen before, Retsu Kaioh being probably the 2nd best Chinese Kenpo master of the verse. If that wasn't enough, he has trained Chinese Kenpo for the last 100+ years of his life, obtaining the "ultimate martial arts skill". Dude is 10-C physically and can fight evenly with Yujiro himself.
Goki Shibukawa is a master of Jujutsu, Aiki, and Judo. But trust me, this isn't your average Aikido. Motobe claims that in the last 100 years, fewer than 10 martial artists have mastered true Aiki, and that Shibukawa is the first to utilize it in combat, having fought for Japan in actual wars in the past. His knowledge on human anatomy is great to the point he can do stuff like
this (3:40) and
this(right at the start). This Aiki works based on inner ki and as such can do stuff like
this (5:45)
Musashi Miyamoto knows all the sword styles that existed on his era, and is, well, Musashi Miyamoto. The dude can predict the moves of people like Baki even if they didn't show any physical sign that they will do it (breathing pattern, muscle tension, etc). Musashi is so damn skilled at swordmanship that he can cut without swords in his hands . He has the senses of a real warrior and knows when not to hold back, and is the creator and master of the Niten Ichi-Ryü sword style. It's said that even 9th Dans in Kendo (about 20 people on the whole world) aren't even remotely comparable to Musashi.
And again, there's
a bunch of other stuff i'm forgetting rn. This is very limited.
The wiki ate this comment. I Ctrl C'd it so i can repost it now, but i swear if i didn't i'd probably be crying in fetal position rn