Perhaps because the old man's injury was strange, or maybe because he was strong, the originally rainbow-colored spring water faded at a speed visible to the naked eye after he entered.
A short while later, the spring water had turned completely transparent, and all the other Heroic Spirits healing inside the hot spring could only stare at this with stunned eyes.
And the old man's figure also solidified again. He suddenly opened his eyes, a flash of divine light in his eyes. His entire aura also turned imposing.
"I, Martin ha returned once again!" Excited, the old man even reported his real name. He laughed and looked at Derek, looking like his schemes had succeeded.
"Didn't expect this, did you? I has been imprisoned by the Yin-Yang Box for thousands of years. I've been waiting for this day... Speaking of which, I really need to thank you, little friend!"