Hearing Shin Uchiha's words, Katsuyu replied in a voice like a young girl's, "It's all right. I address everyone who signs a contract with me as 'Lord' or 'Lady.' Lord Shin, you can just call me Katsuyu."
Shin Uchiha realized that was indeed the case after hearing the Slug Sage's explanation and readily agreed. "All right, Katsuyu. Sorry for the trouble."
Katsuyu shook her head and said cheerfully, "I hope you can master my Sage Mode too. I've had plenty of contract holders over the generations, but very few have mastered my Sage Mode. Compared with Dragon Earth Cave and Mount Myōboku, fewer people succeed in learning my Senjutsu. I don't really mind, but it still bothers me a little."
Shin Uchiha nodded in agreement. There was little that could be done about it. After all, the requirements for learning Senjutsu in Shikkotsu Forest were harsh, and few people could meet them.
Then, under Katsuyu's guidance, Shin Uchiha went to a spot beneath the head of her true body. Not only was the natural energy highly concentrated there, but it also made it convenient for her true body to spit out that special mucus.
Once Shin Uchiha sat down, mucus began drizzling from above like a light rain, landing evenly across his bare upper body. The instant it touched him, a sizzling sound rang out, as though concentrated sulfuric acid had been poured over him.
The moment the mucus landed on his body, Shin Uchiha felt a searing pain, and as time passed, that burning sensation grew increasingly intense.
Shin Uchiha could clearly feel that the mucus had eaten through all his skin and was now corroding his muscle tissue.
He hurriedly mobilized the chakra and life energy within his body to repair the damage.
At that moment, Katsuyu spoke