"Fist King, the Ruler of Beroiah's Nights"
- Name: Sai
- Age: Unknown
- Hobbies: Unknown
- Likes: Unknown
- Dislikes: Unknown
- Weakness: Unknown
At one time, his dream had been to be the best martial artist in the world of martial arts. As the next head of the Iron Fist faction, it was his everyday routine to train his body and mind. However, he was easily defeated by an ordinary man who came from no faction nor had a master.
Black Wind. When questioned about his identity, the man would say those two words and disappear. He had heard the rumors. However, he did not expect that the skills that he had steadily built up over the years would crumble so easily.
There was no way he could return now. As Iron Fist faction's head... As the best martial artist in the world of martial arts... Now they have become things that had nothing to do with him.
"Sir, we're ready."
Sai, who had been locked in his thoughts, stopped once he heard the voice of his subordinate. The man who had once dreamed of being the best martial artist, was now the boss of a gang that ruled nights of Beroiah. Even with this currently lifestyle, he was pretty satisfied. Rather than being the best martial artist, he may have been more suited to this way of life. However...
"Black Wind... I wonder what he's doing now..."
He whispered quietly as he touched the deeply carved scare on his chest.
- Adventure: Beroiah Zone Dungeon Clear Reward.
- Shop: Can be purchased in Prana Shop.
- Fusing Heroes: Acquire randomly via Hero Fusion.
- Treasure Chest: Can be acquired from a Treasure Chest.
- Shop: Can be acquired from Summon Shop.
- "I have lost all reason to be involved with moorim after losing to the Black Wind."
- "Fufu... I am precisely the king of fists, who can silent a crying child. Did you want my autograph?"
- "I am king of fists, Sai!"
- "HAHAHA! You challenge me? You're 10 years too early greenhorn!"
- "No more talking! My fists can puncture the sky!"
- "During my youth, I was able to split the seas with my fist. Those that saw it called it "Sai's Miracle"."
- "What? Do you really have news about Black Wind?"