At the same time, Leo was also walking towards the Service Club activity room, and judging from the direction he came from, he was not chatting with Kasumigaoka Utaha in the classroom as Yukinoshita Yukino had guessed, but had come from the rooftop.
He was indeed a bit late today, but that was because he received a call from Sona Sitri right after school, and to avoid attracting attention, he went to the rooftop and chatted with Sona Sitri for a while.
Recalling what Sona Sitri had just told him, Leo thought to himself.
"Although it's a bit troublesome, I'll take this opportunity to give Yukino a proper practical lesson."
It had been a month since Yukinoshita Yukino became his Retainer. Although she had been diligently reading books, learning about devils, and training her abilities, she had not yet had any actual combat experience.
Without practical experience, no matter how strong one's power, there would still be many problems.
Therefore, Leo had already decided that this matter would be handled by Yukinoshita Yukino, and he would only stand by and provide support, never intervening unless absolutely necessary.
"No time to lose, let's start tonight."
With this thought, Leo arrived at the Service Club activity room.
However, when Leo pushed open the door to the activity room and stepped inside, the heavy atmosphere that filled the room made him slightly stunned.
"You... you're here?"
Yukinoshita Yukino immediately stood up when she saw Leo enter, her reaction quite significant.
The person sitting next to Yukinoshita Yukino, however, was gazing at him with a smile, not only showing no proper reaction but also casting a sharp look at Leo.
Seeing this, Leo raised an eyebrow, then ignored Yukinoshita Yukino's reaction and the sharp gaze, walking in with a normal expression.
"Oh, we have a distinguished guest, how rare."
Leo sat down in Yukinoshita Yukino's original seat, causing Yukinoshita Yukino to subconsciously move aside and stand behind him.
That scene caused the so-called distinguished guest in Leo's words to subtly frown, a hint of surprise flashing in her eyes.
However, she did not show it directly. Instead, she greeted Leo with a bright smile.
"Hello, Erigor-kun, I'm Yukino's older sister, Yukinoshita Haruno. Nice to meet you."
Her enthusiastic demeanor was nothing like her cold sister, nor did it resemble the owner of that overly sharp gaze from earlier. Combined with her delicate appearance and pleasant voice, it made people unconsciously want to lower their guard.
Unfortunately, while Yukinoshita Haruno was enthusiastic, Leo appeared even more radiant than her.
"I know, the eldest daughter of the Yukinoshita Family, you're quite famous in our school too."
Leo smiled heartily, like a cheerful, guileless boy. His smiling face made Yukinoshita Haruno momentarily dazed, and she couldn't help but sigh in her heart.
"Putting everything else aside, his looks are incredibly good, much more handsome and refined than those so-called scions of wealthy families I've seen before."
As for Leo saying she was famous, Yukinoshita Haruno was not surprised at all.
She was already twenty years old this year and was currently studying in the Faculty of Science and Engineering at a local national university, but she was once also a student of Sobu High School, a graduate of Sobu High School.
And in the three years before her graduation, the entire Sobu High School did not have as many as four 'lofty flowers'.
During her high school years, Yukinoshita Haruno was the only 'lofty flower' in the entire Sobu High School, a genuinely popular character who dominated the entire school.
She not only possessed beauty, family background, elegance, and excellent grades, but also had a social ability that could be called cheating, a stark contrast to Yukinoshita Yukino, a beautiful girl with worrying interpersonal skills.
During her time there, whether it was students, teachers, or even the school principal and board members, she established good relationships with all of them, leaving such a deep impact and impression on Sobu High School that even after she had graduated for a year or two, rumors about her still circulated within Sobu High School.
Especially for third-year students, the name Yukinoshita Haruno was still brought up from time to time.
After all, when Yukinoshita Haruno was in her third year at Sobu High School, they had just enrolled as first-year students.
Therefore, many third-year students still had a deep impression of Yukinoshita Haruno, including Leo.
Although he had no direct interaction with Yukinoshita Haruno when he was in first year, he had seen Yukinoshita Haruno walking in the hallway more than once, surrounded by a large crowd of people.
Everyone gathered around her, making her the center, yet she managed not to neglect anyone, handling interpersonal relationships with ease, like a social terrorist.
Many called her a perfect superhuman, and many also saw her as a trusted older sister, remembering her fondly.
This was the situation when Yukinoshita Haruno was attending Sobu High School.
And even outside of Sobu High School, Yukinoshita Haruno was a veritable celebrity.
Because she was the eldest legitimate daughter and heir that the Yukinoshita Family poured all their efforts into cultivating. Even before entering society, she had already begun to undertake various social engagements and some political and business responsibilities of the Yukinoshita Family. Her abilities far surpassed Yukinoshita Yukino's, and she had already gained considerable fame in the political and business circles of Chiba Prefecture.
It was precisely because she was so perfect, so outstanding, that Yukinoshita Yukino had always lived in the shadow of her older sister and was deeply affected by her.
Yukinoshita Yukino's current behavior showed it. She remained silent, completely losing her usual sharpness and sharp tongue, appearing somewhat nervous, and unconsciously revealing a lot of weakness.
Yet, she did not leave, nor did she do anything, always standing behind Leo, appearing to defer to him.
This made Yukinoshita Haruno feel that her understanding of the relationship between these two might contain many errors.
"Isn't Erigor-kun also famous?" Yukinoshita Haruno withdrew her gaze from Yukinoshita Yukino and looked directly at Leo, smiling. "I remember, even before I graduated, Erigor-kun was already very popular, and even older female students secretly went to see you, right?"
"I can't compare to you, senpai." Leo smiled noncommittally. "At least, there are people who don't like me, but there shouldn't be anyone who doesn't like you, senpai, right?"
"Then you think too highly of me." Yukinoshita Haruno narrowed her eyes slightly, hinting, "Many things cannot be judged by appearances alone. Some relationships seem very good, but in reality, they harbor deep dissatisfaction with each other behind their backs. Some relationships appear very bad, but in reality, they care for each other deeply."
As she spoke, Yukinoshita Haruno's gaze lingered between Leo and Yukinoshita Yukino, her expression becoming increasingly meaningful.
"Just before I came, I always thought there was some unknown illicit relationship between the two of you, but now it seems your relationship is even more complicated than I imagined."
Undoubtedly, Yukinoshita Haruno had come to Sobu High School to confront them because she had learned that Yukinoshita Yukino had not returned to her apartment recently and was seen getting close to a boy, with rumors suggesting they were already together.
Yukinoshita Yukino also knew her sister would misunderstand her relationship with Leo, but she chose not to refute, opting for silence, fearing her sister might discern something.
Even though she had always lived in Yukinoshita Haruno's shadow, Yukinoshita Yukino had to admit that her sister was excessively outstanding, completely different from a "flawed product" like herself, a true perfect superhuman.
If she were to rush to argue, to explain, she would surely fall into the other party's linguistic trap and unknowingly reveal the truth.
To avoid this, Yukinoshita Yukino could only uncharacteristically remain silent, even when Yukinoshita Haruno provoked her with words, she did not refute or explain, just waiting for Leo to arrive.
Leo, on the other hand, seemed to have no intention of hiding anything, acting very openly.
"In a way, Yukinoshita-senpai is not wrong."
Leo looked at Yukinoshita Haruno's probing eyes and said these words with a smile.
"Yukinoshita and I do have an unknown relationship, and this relationship is not proper."
At these words, Yukinoshita Haruno's eyes sharpened once more.
She stared at Leo, both with smiles on their faces, yet not a hint of amusement in their eyes.
No, it should be said that Leo's eyes were still full of playful amusement, while Yukinoshita Haruno's eyes had completely lost any hint of a smile.
This caused the air in the Service Club activity room to become heavy again, even tense, making Yukinoshita Yukino's back break out in a light sweat.
"You're very bold, Erigor-kun."
After a long pause, Yukinoshita Haruno spoke again.
"You know we are the daughters of the Yukinoshita Family, yet you dare to admit to me that you have an improper, unknown relationship with my disappointing sister. If my mother finds out, you might not be able to stay in Sobu High School, you know?"
This was less a threat and more a test.
Yukinoshita Haruno was trying to decipher Leo's true nature, a skill she excelled at.
Despite her sunny and cheerful demeanor, appearing like a caring older sister, this was merely a facade.
Yukinoshita Haruno was a fake person who would adjust her behavior and personality according to the preferences of her target, making herself their ideal type to achieve various goals. She was by no means a perfect superhuman.
Now, Yukinoshita Haruno was trying to decipher Leo's preferences, hoping to achieve her probing objective.
But this was actually a futile effort.
"Anyway, the close interaction between Yukinoshita and me will eventually reach her ears, so what does it matter?"
Leo had always been very frank, so there was no need for probing.
...Your meaning is, even if I came here today, you still don't plan to end this relationship.
Yukinoshita Haruno's smile subtly faded.
Leo, on the other hand, smiled even more broadly.
"It should be said that you cannot end this relationship."
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