Dumbledore? He knows nothing about MC alchemy.

Cedric touched his chin: "Professor, won't you help Harry?"

"Didn't Harry say he could do it? Then let him study it himself." Kaisen shook his head and said.

Then in the alchemy class the next day, Kaisen wrote dense runic symbols on the blackboard.

"These runic symbols, when used with an enchantment book and an enchantment table, can accomplish things we normally can't do. For example, if you enchant a hat with these runes, you can breathe underwater. It's really fun."

Harry, who was copying runes on his notebook, suddenly paused. He thought for half a second and finally decided that he should bring some gifts to the Alchemy Office one day to apologize to Professor Kaysen for his willfulness.

Then continue copying.

After the class, Kaisen went straight back to his office along the stairs and saw Dumbledore driving a small boat towards him.

"What happened?" Kaisen asked in surprise.

"The Yule Ball, remember?" said Dumbledore.

"Huh?" Kaisen said in confusion.

"We said we were going to get the outsider hiding in Hogwarts drunk," Dumbledore amended.

"Oh, Christmas party!" Kaisen understood this time.

"So your only memory point is wine?" Dumbledore said, rolling his eyes.

"Alright, should we plan with Severus to make a large batch of Polyjuice Potion antidote? Actually, milk can achieve the same effect." Kaisen said.

"Let's use the Polyjuice Potion antidote. We can choose to put the mild antidote directly into the wine, and then find the person whose body has changed." Dumbledore said.

"Well, I just remembered the effect of milk." Kaisen said a little disappointedly.

"Oh, by the way, besides that, have you found a dance partner?" Dumbledore asked.

"Um, I'm not going to dance."

"Well...that's true. We don't have any female professors of the right age waiting for your invitation at Hogwarts."

"Hmm." Kaisen sat on the sofa and took a sip of tea strategically. He planned to consider whether he should go out to cook a small meal at noon.

Then Harry and Ron came to the door.

"What happened again?" asked Kaisen.

"Professor? Do you know about the Yule Ball?" Harry asked, swallowing.

"I know... um... Harry, as the hero, you will be the one to take the lead in dancing at that time," said Kaisen.

"That's right, but we haven't found a dance partner yet." Ron said bitterly.

"I can understand that Harry hasn't found a dance partner, but Ron, why don't you have a dance partner yet? Why don't you invite Hermione?" Kaisen said with a frown.

"Hermione? Is she a girl?" Ron asked in confusion.

"Huh?" Kaisen asked in surprise.

"Well, maybe I should be more blunt, Professor. Hermione and I are too familiar with each other. I'm a little embarrassed. You know our relationship. We know each other so well, and then we hug each other and dance. It feels weird." Ron said with a look of disgust.

"...Um...Do you want to invite Hermione?" Kaisen asked.

"What I mean is, Professor, Hermione is like a brother to me. I can't extend my evil claws to my brother, right?" Ron shook his head.

"Reach out, brother..." Kaysen looked at Harry, then at Ron...

That thought is too dangerous, too dangerous...

"If you really can't find a dance partner, will you be each other's dance partner?" Kaisen pointed at Harry and Ron and said.

"Well...it's a little awkward actually. Maybe it would be okay if they didn't focus their strange eyes on us, who are of the same gender." Ron said after thinking for a moment.

"Then there's no problem? You're a man and Hermione is a woman. No one will say anything if you invite her to be your dance partner." Kaisen clapped his hands and said.

Ron swallowed, his brows still furrowed.

"Then I will..."

"Of course you're going to find Hermione. Are you waiting for her to find you?" Kaisen said.

Ron thought for a moment, then betrayed Harry: "Good bro, I'm going to invite Hermione, you're on your own!"

As Ron scurried out of the office, Harry pointed a finger at himself. "What about me?"

"You? Do you have someone you like?" Kaisen asked.

"Professor, you know me. I'm a Sigma man." Harry shook his head.

"...Why don't you go find Neville?" Kaisen suggested.

"Neville just invited Hannah Abbott from Hufflepuff," Harry said bitterly.

"........................................"

“......................................”

Just as the two were looking at each other in silence, Ron came back with a miserable look on his face.

"What's wrong? Can't find Hermione?" Harry asked.

Ron shook his head: "I found her, but I was late. Someone invited her in advance."

Kaisen raised an eyebrow: "Who is it?"

"Viktor...Krum!" Ron said this name, rarely with an admiring voice, but with gritted teeth.

"It seems like you are very resentful." Harry said with his half-moon eyes open.

"So now one problem has become two problems?" Kaisen asked.

The two turned to look at Kaisen in unison: "Obviously."

Kaisen looked up at the ceiling and thought for a moment. It was a simple math problem.

1+1=0

perfect!

Kaisen gave an indescribable smile: "Well, I met Severus some time ago. He invented a special potion......"

Harry and Ron looked at each other, and both saw deep fear in each other's eyes.

"Hey Professor, I think we suddenly don't want to find a dance partner." Ron said as he was about to leave, but was picked up by Kaisen's mechanical arm and brought back.

On the other side, Harry also suddenly realized that he could not wait for a dance partner to find him. He had to take the initiative. He decided that he would invite the first female classmate he met after going out of this door.

The same person was dragged back.

"Professor, we suddenly feel that it would be better for us to invite our own dance partners."

Jiang Kaisen looked at the two of them with a smile.

Chapter 295 Harry

"Thank you, Severus!" Kaisen smiled and closed the door for Snape, then teleported back to the office.

"I'm teaching you this bottle of potion. As for who drinks it, that's up to you." Kaisen said as he placed the potion in front of the two.

"Um, Professor, what's the use of this thing?" Harry asked, swallowing.

"It's hard to say. I can only say that you just need to let one of you drink this potion, and you won't have to worry about your dance partner." Kaisen said with a smile.

......................................

In the morning, Kaisen sat in the office and sent Ron and Harry away with a good idea. In the afternoon, another person came to the office of Little (crossed out).

"Professor, I have a problem and I don't know what to do." Hermione sighed.

"Hmm? Go ahead," Kaisen said.

"Now two people have invited me to be their dance partner at the same time, who should I choose?" Hermione asked.

"My opinion is... the latter."

Hermione was surprised: "Why?"

"If you really don't like the latter and like the former enough, you won't have this problem at all. Now we can use our logical thinking to carefully examine the question, which happens to be what you are good at." Kaisen explained.

"But I have already promised the former, and I have rejected him for the latter." Hermione continued.

"Don't you think we shouldn't reject it so completely?" Kaisen asked.

"Of course not. This kind of thing should be completely rejected. But that's why I regret it." Hermione sighed.

"Do you regret agreeing to the former?" Kaisen raised his eyebrows.

"Yes." Hermione nodded.

"Then reject the former and make things clear to him. Since you don't like the former at all compared to the latter, is it fair to him to be his dance partner with a mentality that can be called pity?" Kaisen said.

"But Professor...wouldn't that be a bigger blow to him?"

"An open refusal is always better than a covert deception, especially for a proud person," Kaisen replied.

"Then I'll go?" Hermione asked tentatively.

"Do you need me to send you off?"

"No." Hermione shook her head.

Kaisen watched Hermione get on the boat, and then he quickly teleported directly to Gryffindor Tower.

"Where's Ron Weasley!"

“They teach in the dorm.”

"Do we need to catch him?"

The Weasley twins came over and said.

"Lead the way." Kaisen said anxiously.

He was now certain that Hermione had gone to Krum to refuse, and if Ron had drunk the potion and become a girl, he would be truly guilty.

Soon, Kaisen came to Harry and his friends' dormitory under the guidance of the twins, and then he breathed a sigh of relief, but the faces of the twins who led the way became embarrassed.

"Little Ronnie..."

"This little beauty...where did you find her?" Gemini II asked in confusion.