"I never expected this! This Ring could actually upgrade its system. But only the system got an upgrade-why hasn't the scenery changed? It still looks the same!" Ruri said, looking at the little white ball floating in front of him.
"But that's fine too. Even if the scenery stays the same, it won't affect my daily training. Oh, right, what's your main ability?" Ruri asked curiously, looking at the little white ball before him.
The little white ball that called himself Ring Butler Zero floated in front of Ruri for a while, then said to him, "My main ability is to manage everything inside the Ring. I'll also supervise you while you train. If you do anything wrong, I'll have you correct it right away. To put it plainly, I'm what used to be those virtual words!"
"When you use training mode, I'll also become your opponent. I'll take on human form to fight with you, and I can switch my level at will, from the strongest to the most ordinary! If you can beat me, you'll receive a set of Ninjutsu of your very own!"
Holy crap, he can even take on human form to fight with me! That's good too. Before, I was always hitting trees and rocks here, and I never had a real fight here. Now that I can fight with a real person, I'll be able to fully recognize what shortcomings I still have in war! Ruri thought.
Ring Butler Zero bobbed through the air a few times, then said to Ruri, "I can also simulate a battlefield inside the Ring, so you can experience a real battlefield here! Any injuries you suffer inside the Ring won't affect your actual body at all. Once you leave the Ring, your injuries will be completely healed! And