Practical Teaching: A Guide to the Training of a Humanoid Succubus

"That's what I should do. But thank you, thank you." Ichinose blushed slightly: "I thought..."

"You thought I would attack you, right?" Dongfang Yi said calmly.

"I... just a little bit." Ichinose really didn't think Dongfang Yi would be a guy who would be indifferent to victory.

"I wouldn't stop my friend from pursuing her ideal path. On the contrary, I sincerely hope that my friend can achieve her wish." Dongfang Yi smiled and said, "I wish you a successful start and immediate success."

"Thank you very much. I... I never thought that Dongfang classmate would recognize me so much."

"I've always had a pretty good eye for people." Dongfang Yi, who had read the script, spoke confidently, "However, in my opinion, although Ichinose is very capable now, she's still missing something."

"What is it?" Ichinose was eager to increase his chances of success in the afternoon interview.

"Identifying lies." Dongfang Yi brought the topic back on track.

The question he just asked was just to confirm the time of the student union selection, because the original work did not describe it in detail, only saying that it was a holiday.

But since Ichinose is going to participate this afternoon, Dongfang Yi might as well help her patch it before she attends.

As for the mission report and so on...let's talk about it tonight.

I believe that I will work hard at night.

"But... at school, those things shouldn't be necessary, right?" Ichinose said, still innocently. "After all, we're all friends. Even if we have to lie, there must be some private reasons or excuses."

"That's true, but lies lead to misunderstandings, and misunderstandings breed harm." Dongfang Yi shrugged. "We see through lies not to expose them, but to better care about our friends' feelings, see through the problems that may exist behind their lies, and better help them out of their difficulties, isn't it?"

"What you said... makes sense, Higashikada-san." Ichinose was convinced by him.

"So now you want to know?"

Ichinose hesitated for a moment, then nodded firmly.

"Very good." Dongfang Yi was very satisfied with her attitude. "Then in order to see through lies, the first thing we need to understand is how to create lies."

“How do you make a lie?”

"Yes, only by learning to create lies can you understand the internal logic behind their creation," Dongfang Yi explained. "Generally speaking, we divide lies into three types based on the inherent differences in language: those consisting of all truth, those consisting of all lies, and those consisting of a mixture of truth and lies."

“Are there any differences between these three types?”

"The first method is the most difficult to use, but also extremely difficult to detect. Without information and vigilance, it's essentially impossible to detect unless the situation arises or the liar deliberately reveals the truth. Because it requires extremely high attainments and is beyond the reach of ordinary people, we won't introduce it today."

"As for the second type, it's too elementary and low-brow. Those who use it are usually honest children, who can easily see through it and don't need to learn. Therefore, we won't introduce it here."

"So, Ichinose-san, what I'm going to teach you next is how to see through the third type of lie."

Dongfang Yi's eyes became sharp, he retracted his playful look and started to give Ichinose a hint.

"The third type? A lie that's half true and half false?"

"Yes, that's what I just used. What do you think?"

"It feels...hard to see through." Ichinose recalled Dongfang Yi's acting just now: "Exaggerated, sad, and very contagious."

"No, it's just that it's hard for Ichinose to see through me." Dongfang Yi raised an eyebrow. "Because Ichinose is a good person, used to caring about the feelings of his friends around him, and has his own logic when dealing with things, so he was deceived by me. If it were a stranger here, no matter how sad I pretended, he would still be indifferent."

"Does this mean that for this kind of lie to succeed, the strategy must be specifically adjusted to the person being deceived?"

Ichinose seemed to have some realization.

"That's right. Saying the same thing in different ways will have different effects." Dongfang Yi raised his finger: "Let's assume an extreme scenario first."

"If you are a tourist with poor morals and your wallet falls into the water, and you can't swim, you have to ask a stranger nearby to help you get it out. How would you achieve your goal?"

"...Can you help me find a stick to pick it out?"

"Your morals are clearly not low enough, Ichinose." Dongfang Yi had a look of unbearable determination. "If the stranger is kind and noble, then the tourist should weep bitterly and tell them that this is a treasure left to them by a deceased relative. If the stranger is greedy and foolish, then the tourist should tell them that the dropped wallet is worth a fortune and that if they find it, they will share it equally."

"In other words, tourists should target the weaknesses in strangers' nature in order to successfully motivate their behavior and induce them to act on their behalf."

"Is that so? But Higashikata-san, what does this have to do with seeing through lies?" Ichinose was puzzled.

"Ichinose, what's the first step in seeing through a lie?"

"...analyzing the other person's words?"

"It's about not being fooled!" Dongfang Yi grimaced. "It's about remaining unmoved! It's about staying calm! It's about suppressing your inner emotions at the critical moment! Think about it, if you were that noble and kind stranger, what would you do?"

"Should I...help him get it out?...No, that's not right, then..." Ichinose was confused: "I don't know."

"Is its wallet as important as your life?"

"...No."

"Then you're still going down?"

"...Can..."

"If it has no money to eat, you can spend some money to buy it food. If it has no money to go home, you can help it buy a ticket. It's its wallet that was lost. Why would you risk your life to help it get something of unclear emotional value?"

Ichinose nodded, approving of Dongfang Yi's approach.

"So, this is the first step in identifying lies, which I call self-denial."

"Self-denial?"

"Restraining your emotions during conversations and maintaining independent and calm thinking are the foundations of everything."

"But, how should I... no, what do I mean by calm thinking?" Ichinose wrote down Dongfang Yi's words, but was still a little confused.

"That's our second step." Dongfang Yi smiled and said, "Ichinose, can you control your inner impulses and not be driven by disappointment, sadness, self-blame, guilt, or kindness?"

"I...will pay attention."

"Very good, then we can move on to the second part."