In this version of the game, the "Strongest" would be KozoEgawa, I believe, lest someone passed him in power.

And when I say strongest, I only mean power-wise. The real way to determine the "Strongest" would be in combat. But in this version of the game, Though I do believe KozoEgawa is the strongest, power wise. If there is someone who has higher power then Kozo, in this version of the game, not the german or any other servers, feel free to correct this statement.

Ah! This is my first time hearing of Placeholder. It seems like Kozo has indeed been passed.