This demon was a man. When he saw Uchiha Shin, he smiled.
"You're the first person who's been able to enter this place. Who are you?" The man circled Uchiha Shin once before asking.
"My name is Uchiha Shin. I came here to obtain the Ancient Water Pearl."
"Uchiha Shin, I've heard of you. Do you know who I am?"
"I do not."
"I am the king of Blackwater Pool. You may call me Leech."
Leech?
After hearing that name, Uchiha Shin looked the man up and down again and finally understood what sort of demon he was—a leech demon.
"I've lived in Blackwater Pool for many years. Why have you come here?"
"I came to obtain the Ancient Water Pearl," Uchiha Shin repeated. He had already said so.
"For Gonggong?"
"Exactly."
Leech smiled again. "I knew you were here for Gonggong, but the Ancient Water Pearl is also extremely useful to me. I certainly cannot simply hand it over to you."
"What are your conditions?"
"If you want the Ancient Water Pearl, make a wager with me. If you win, I'll offer the Ancient Water Pearl to you with both hands." Leech smiled once more.
"What sort of wager?"
Leech said, "Though it is called a wager, it is also a test. I will suck away your blood. As long as you can endure it, I will return the blood to you afterward, and you will have won."
"How long do I need to endure?"
"Half an hour," Leech said after thinking for a moment.
Uchiha Shin said, "If I make this wager with you, I'll be at a disadvantage. You'll have sucked away my blood, and if you refuse to return it, won't I still lose? Whether I win or lose this wager depends entirely on your mood.