The villainous young master just wants to live a Buddhist-like life.

　To gain something, you must give something in return.

　Moreover, it's only such a small contribution.

　As a result, new "Hanafuda" cards continued to be released.

　……

　The reappearance of "Hanafuda" was like a gust of wind, quickly spreading throughout the entire castle.

　Those who bought "Hanafuda" last year couldn't resist getting one after discovering that this year's "Hanafuda" is even better than last year's.

　Once they get their hands on them, they will immediately discover that this year's "Hanafuda" is incomparable to last year's in terms of function, appearance, and technological content.

　When two different styles of floral plaques are placed side by side, the difference in quality becomes immediately apparent.

　As a result, even more people came to buy "flower cards".

　Even first-year students, after hearing the news, came eagerly to buy.

　After all, a "flower card" only costs five credits, so it's a steal.

　That night, over a hundred more cards were sold, leaving Dark with just over five hundred "flower cards".

　According to his original plan, selling more than a hundred copies throughout the day would already be considered a very good sales performance.

　I never expected that more than 400 copies would be sold directly.

　Once these four hundred-plus cards were sold, the "flower cards" could be seen everywhere in the entire castle.

　On Sunday evening, the students discussed topics related to "Hanafuda" (flower cards), showing particular interest in the positive feelings indicated by the cards.

　This method of quantifying favorability data makes "Hanafuda" (flower cards) more popular.

　Through these "flower cards," one can even know how much other people like or dislike them.

　The common lounges in each of the colleges even had a festive atmosphere.

　In particular, "Hanafuda" cards are not magic cards, so they can be freely exchanged and used. Therefore, you can even see couples exchanging cards to see how much affection the other person has for you.

　If both parties have a high level of mutual affection, the atmosphere will become more lively.

　Conversely, if an unexpected result occurs, then...

　Dark probably never imagined that his "flower cards" would become a weapon for breaking up.

　Over time.

　The students even nicknamed it the "love detector"!

　Compared to last year's "love fortune telling", this year's "affection test" is quite ingenious.

　It can only be said that from the moment this idea came out, the trend of "Hanafuda" (flower cards) became unstoppable.

　……

　Knights' Academy Tower.

　Robert Broheim was proudly demonstrating the function of "flower cards" to Witt Gold.

　Meanwhile, Witt Gold, preoccupied with his "forbidden love," felt a pang of jealousy.

　When something you once had that you possess suddenly becomes scattered all over the place, it's hard for anyone not to feel good.

　……

　Dak didn't return to the tower until 9 p.m.

　Then, as soon as they entered the tower, they were caught red-handed by Diana and Rose.

　The two went to the dungeon on Friday and didn't return until this evening. As soon as they left the dungeon, Professor Kazel took them away for testing. After the testing, they rushed to the mission hall to hand over their mission.

　By the time they finally had some free time, it was already past eight o'clock in the evening.

　It was only after that that they discovered the changes within the academy.

　It was as if overnight, everyone had the same toys, and those without toys were out of touch with the times and couldn't join the conversation at all.

　Diana and Rose looked curiously at the "flower cards" in their classmates' hands. When they learned that these "flower cards" could actually show the level of affection for someone they liked, they were both intrigued.

　After asking a few questions, they learned that the "flower cards" were actually bought at a branch of the All-People Duel Club!

　After receiving the news, the two looked at each other and immediately reached a consensus that it must have been Dark's doing.

　But Dark Deemon was nowhere to be found, neither in dormitory 301 nor in the Magical Creatures Club's classroom.

　So they simply waited in the common lounge, and sure enough, they successfully caught him.

　"So, how many do you want?" Dark asked.

　“One is enough for each person!” Diana exclaimed excitedly.

　Dak then took out two cards and handed one to her and one to Rose.

　The two who got their hands on the "Hanafuda" immediately followed the example of the other students and infused the "Hanafuda" with magic.

　As the petals materialized and the fragrance filled the air, the same person's image appeared in both of their "flower cards".

　Diana glanced quickly at the number of hearts on the "flower cards" and then immediately looked at Rose's card.

　But Rose subtly tilted the "flower card" slightly, and the image on the card quickly changed from Dark to Diana, with a series of similar patterns on it.

　Diana counted the number and suddenly her cheeks flushed slightly.

　Then she turned back and made sure her "flower card" also displayed Rose's image, looking at the top of the card.

　"Hey!"

　That series was naturally no less than Rose's.

　Their friendship transcended the trials of "Hanafuda" and grew even stronger.

　……

　"Then, I'll head back now?"

　Seeing Diana and Rose chattering together again, Dark tried to speak.

　The prolonged concentration left him feeling exhausted. All he wanted to do was go back to his dorm, take a bath, and wait for his late-night snack to arrive.

　But the worst thing still happened.

　Diana grabbed him, her eyes shining: "Dark, can I see you use 'Flower Cards'?"

　……

　Faced with Diana's eager expression and Rose's expectant eyes, Dark's expression stiffened slightly, but he quickly regained his composure.

　"The number of 'Hanafuda' cards isn't solely determined by how much one cares about the person depicted on the card; the strength of one's willpower and how easily one is swayed are also major factors influencing the number."

　As he explained the concept, he took out the first "flower card" he had crafted from his card pack.

　This "flower card" is not elaborately made and lacks floral embellishments, but it has all the necessary functions.

　"And as long as you understand the basic logic of 'Hanafuda,' you can even do something like this."

　As he spoke, he made Diana's image appear on the "flower cards," then turned the cards towards Diana and shook them.

　Diana stared wide-eyed at the top of the portrait, and suddenly saw it flashing frequently like a neon light, jumping back and forth between one and twelve!

　"why is it like this……"

　Diana was unhappy.

　Rose secretly breathed a sigh of relief and said, "The original quantity was a maximum of twelve? I thought..."

　Dark put away the "flower cards" and said, "Normally, nine is the limit, and the extra three are just to open up the upper limit."

　He then yawned very naturally and said, "I have to go back, I'm so sleepy."

　"Mmm." Rose raised her hand and whispered, "Goodnight then."

　"Good night." Dark nodded slightly.

　“Ah?! Goodnight then…” Diana echoed.

　So Dak took the opportunity to slip away!

　……

　"That's dangerous enough."

　Dak pushed open the door and finally returned to his dormitory.

　The cat grass that wafted towards him warmed his heart.

　The sight of Sylveon clutching a "flower card" on its ribbon tentacles chilled his heart.

　"What a bad decision!"

　Hunting geese all day long, only to be pecked by geese.

　Darko Dimon never imagined that the "flower cards" would become a prison that confined him before they even had a chance to work.

　He suddenly felt like he had dug a huge pit for himself to jump into.

　The magical spirits in the house, who knew where they got the "flower cards" from, were all staring at him with wide eyes.

　When Aurora, carrying a tray, knocked on the door and entered, she suddenly took out a "flower card," and Dak couldn't help but smile wryly.

　Aurora is not as easily fooled as Diana...

　If he tries to get away with using cuteness and popular science as a pretext, it's definitely not going to work.

　"These 'flower cards' don't actually reflect a person's level of affection."

　Dac attempted to explain.

　But Aurora's gaze remained unwavering.

　Numerous facts have proven that even if "Hanafuda" cannot precisely measure favorability, it can still yield a similar value.

　Furthermore, anyone with a basic understanding of mathematics knows that simply looking at the numbers isn't reliable. However, if you make a horizontal comparison of the number of people shown on the cards...

　For example, if Dark uses the same "face cards" and the card shows that Diana has seven, he can use that as a reference to compare the number of other cards.

　In this way, the degree of concern becomes clearly visible.

　……

Chapter 681 Begging for Subscriptions: Darkdymon Cannot Step into the Shura Field

　Since things have come to this point, there's no point in continuing down this path.

　Moreover, one is bound to be obligated to accept gifts and favors...

　Dak took a sip of the chicken soup and said with a helpless smile, "Since you want to know, let's take a look together."

　In fact, ever since he crafted his first "flower card" yesterday, he had only checked his own "affinity" for Professor Cazell, and his purpose was merely to test whether the "flower card" was useful.

　This is because he doesn't think the "favorability" displayed by the "Hanafuda" cards has any real meaning.

　Because its core essence is not about "how much you care", but simply a tool for testing willpower!

　A strong will and resistance to temptation lead to low favorability—this is clearly unreasonable.

　Even if Professor Cazell added a few conversion formulas to it, it was only to make it as plausible as possible.

　Ultimately, it's just a "false advertisement" set up to make "Hanafuda" popular.

　……

　In addition, the strength of human will can vary greatly with time, personal condition, and surrounding environment.

　Therefore, the level of "favorability" shown towards the same person will vary at different times.

　—This seems more like a real "favorability rating"!

　……

　However, all these arguments are meaningless in a "single-item comparison experiment" with fixed preconditions.

　The so-called "strength or weakness of will" can also be understood as "fluctuations in emotions".

　But Aurora had already seen through this!

　……