As we can see from when we first meet him, Sekizan is in his element as team captain. He cares so much about his teammates and their performance as a team, that he is constantly aware of all of them and their needs and whenever things look bad, he always has inspiring words.

Even when he's crushed by a loss, he comes back for his team. Sekizan is almost like a brother/father figure for the rest of the boys. He cares about them but pushes them to their limits, like during their Golden Week training camp where they practiced from morning to night!
Though he's always done his best, his skills as a leader improved immensely when they first met coach Komori and he told him all that was wrong with the way Sekizan was running things. He's only become more of an inspiration for the rest of the team since then!

As pointed out above, Sekizan loves his teammates and cares for them and their betterment. However, like the father-figure he seems to be, he's very tough on the team.

A perfect example of this is when he asks Komori to double-up on their beach practice to both mornings and afternoons; or even earlier in the series, when he makes Gion practice “the turtle” for hours on end. He's not being mean, he's toughening them up!

He sees what Gion, himself and the rest of the team want to achieve and he pushes everyone almost to their breaking point in order to help them succeed.

Though Sekizan seems like a very serious, intense muscle-head at first sight, he actually has a sensitive personality and a unique sense of humor. He did get a bit emotional after a defeat against Sagami; and when Komori gives him a good talking to, you can see in Sekizan's face that the coach's words hurt.

This sensitivity makes a perfect counter to his very strict, and very serious view on training, teamwork, and rugby in general. He's also a stickler about respecting one's elders, as he painfully reminds Gion about this matter on a regular basis by pinching his cheeks.
Sekizan is tough but caring; big and strong, but sensitive and polite. He's not all muscles, he also has a big heart and a sharp mind!

After their disappointing loss against Sagami, coach Komori takes the boys out to practice at the nearest beach. Well, he makes them run there, but that's not important. Sekizan is being his serious self, but he's been feeling depressed about their loss and so is kind of zoning out most of the time, though still kicking butt in each drill.

One of the drills is carrying each other for 20 laps. In Japanese, this is called “Ohimesama dakko” or (roughly) “hold the princess”, because you basically carry someone princess-style. When we see Sekizan being carried by Hachiouji, Sekizan fits the namesake of the hold perfectly as he sits there in Hachiouji's arms looking meek and clasping his hands together quietly, like a true princess! Hachiouji even asks him to stop doing it as it makes him feel a little weird. To which Sekizan is apparently oblivious... Adorable! This has to be one of the best Sekizan moments so far.

Let's be honest here. Sekizan has the manliest, most well balanced athletic shape out of all the guys. He's physically well balanced and sturdy. He's like a mountain! In fact, the kanji for Sekizan (赤山) means “red mountain”.

He's not only the strongest player in the team, as very few can make him budge with a tackle, he also has stamina for days! Like when, after being pummeled by Keijo, he manages to take down an old rival and Keijo MVP who'd been looking down on Jinko since Sekizan's first year. He showed him! That ugly faced jerk...

Speaking of which, Sekizan also has beautiful features! He's handsome, and that messy red and white mop of his truly suits him. And with those incredibly tight rugby uniforms, Sekkii's certainly our favorite Jinko player to stare at!