“Come in.” It was Mo Xiao’s voice.

Yu Huang hurriedly walked into the living room and walked around the frosted glass screen. She saw Mo Xiao eating behind the dining table.

Mo Xiao asked Yu Huang, “Ah Huang, have you had breakfast?”

“Not yet.” Yu Huang noticed that there were seven to eight plates in front of Mo Xiao. On each plate, there were exquisite and delicious snacks and dishes. Yu Huang smiled and said, “Breakfast is very sumptuous this morning.” Mo Xiao was a very thrifty person. Usually, he would eat at most four dishes and one soup every three days. Today, it was very sumptuous.

Mo Xiao shook his head and smiled. He told Yu Huang, “I starved when I was young. I’ve always been obsessed with food.” He pointed at an empty chair and gestured for Yu Huang to sit down. “Since you haven’t eaten, accompany me to breakfast.”

Since Mo Xiao said that, Yu Huang focused on eating breakfast in silence.

Yu Huang and Mo Xiao were both big eaters. The two of them actually ate all the food on the dining table. After eating, Mo Xiao brought Yu Huang to the small study next door. He took down two strange-looking bottles from the ancient shelf in the study.

The bottle was as transparent as glass, but the material was not glass.

After Yu Huang saw the appearance of the bottle clearly, she said in surprise, “This is a Klein bottle?” Yu Huang had seen this kind of bottle during the Doomsday Era on Earth. On Earth, they treated the Klein bottle as a four-dimensional spatial substance. This bottle had a concave surface without any orientation. There was no distinction between the inside and outside.

In short, this was a magical bottle.

Mo Xiao was somewhat confused when he heard an academic term that he had never heard before from Yu Huang. He held the bottle and asked Yu Huang, “What is a Klein bottle?”

Yu Huang was momentarily at a loss as to how to explain.

If she really wanted to explain, she would have to explain it in mathematics terms. However, the Grand State Master knew divination, but he didn’t know mathematics. There was no way to explain this problem.

Yu Huang teased the Grand State Master. “There’s something that looks very similar to it. It’s called the Klein plane. Because it looks like a bottle, it’s also called the Klein bottle. Godfather, what’s that in your hand?”

Mo Xiao smiled mysteriously and handed the two bottles to Yu Huang. He told her, “Ah Huang, this thing is very important. I’ll give it to you for safekeeping. You have to remember that unless it’s a critical moment, unless your life is in danger, you must not take it out.”

Yu Huang was alarmed by Mo Xiao’s serious expression. “What exactly is this?” Yu Huang revealed a cunning smile and said, “Godfather, even if you were my biological father, you would have to tell me the origin and use of this thing. I won’t put a dangerous item that even I don’t know by my side.”

Hearing this, Mo Xiao pressed his forehead sadly and said, “It’s a level 9 Spiritual Energy Replacement Bottle.”

Yu Huang’s eyes instantly widened. “Level 9 Spiritual Energy Replacement Bottle?” Afraid that they would fall to the ground and break, she hurriedly held the two bottles carefully. Yu Huang asked in a low voice, “Is it the legendary level 9 Spiritual Energy Replacement Bottle that can accommodate all the cultivation abilities of a Prime Master at once?”

Seeing that Yu Huang recognized this thing, Mo Xiao was slightly surprised. “You know?”

“Yes.” Yu Huang explained, “Mentor gave me a complete record of Spirit Tools. I’ve seen the explanation of such things in it.”

Mo Xiao nodded. “Yes, that’s it.” When he heard the complete record of Spirit Tools, Mo Xiao couldn’t help but think of Dongfang Sile. A hint of sadness flashed across his face. Mo Xiao told Yu Huang, “The complete record of Spirit Tools is a good thing. Although it’s a pirated record, this pirated record was exchanged by a Senior with his life. You have to treasure it well. Don’t lose it.”

“I understand.”

Yu Huang stared at the bottle in her arms and looked at it carefully.

Suddenly, she thought of something and suddenly raised her head to look at Mo Xiao. She asked him with a serious expression, “Whose spiritual power is inside?!” After asking, Yu Huang realized that Mo Xiao’s expression was much paler than usual. Yu Huang guessed a possibility and asked with a trembling voice, “Godfather, you… you put your spiritual power into the Spiritual Energy Replacement Bottle?”

Mo Xiao stared at Yu Huang with a deep gaze and didn’t say anything.

Yu Huang’s voice suddenly raised a few octaves. “Is that so?! Tell me!”

Mo Xiao closed his eyes helplessly. “Yes.”

“Why?!” Yu Huang’s eyes turned red. “Godfather, why did you do this? This is spiritual power that you spent your entire life cultivating! Why did you do this?!” The light bottle in Yu Huang’s arms instantly felt like it was a thousand pounds.