C1134 Forbidden Soul Technique

After I asked Black Grandpa a few more questions, Black Grandpa either kept silent or refused to admit that something had happened. After that, Black Grandpa replied to me with his Will Transmission, "There is something fishy underwater. This cave is not simple either."

"Oh? What's fishy?" I finally got Black Grandpa's response, and I hurriedly asked him with my Will Transmission