Slumber
Ryu looked like an absolute madman. But when your goal was to stand across from your own terrible Fate and flip the table, there was only one way to do that…
And that was precisely to be a madman.
Ryu wasn't just doing this for the sake of revenge. He was confident in his abilities to deal with Old Wan. Even if the man had a trump card hidden away in his body somewhere, it wouldn't make a difference to Ryu.
The fact of the matter was that no matter how well hidden the trump card, the moment it was activated, it would have to reveal itself. The moment that happened, Ryu would have the chance to overturn everything. He simply didn't believe that there was anything Old Wan could do to him that he would be unable to counter.
Ryu simply had too many trump cards and too much flexibility. He had seen so much of the world, and even until this day, his strongest abilities were probably that of being a Ruin Master.