The next day.
I started to formally teach Ryuz.
"Then, I look forward to it, teacher! Oh yeah!"
"You don't need to be so tense. Unlike the academy, I'll teach in a light and fun way."
"I understand. Oh yeah...."
Perhaps because I was the first person to acknowledge her talent.
She started to feel more comfortable and began to play various pranks.
This freshness and bright personality were Ryuz's strengths.
"Unless there's something special, we'll have lessons here at this time every day. Is that okay?"
"Yes, I like it."
For your information, the tutoring place was Ryuz's room.
I chose it because I thought it would be more appealing, and my hunch was right.
'It smells sweet, probably because it's a young woman's room.'
Ryuz's room was decorated cutely, similar to her bright personality.
There were several dolls on the bed and a variety of cosmetics on the dresser.
Her fashion seemed to be quite trendy, too, and it seemed she was very interested in dressing up, as was typical for her age.
"Ah, the room looks a bit childish, right…"
Ryuz, noticing my gaze, said shyly.
"Do you think so? I find it cute."
"Um, since I'm not a kid anymore, I should probably graduate from things like dolls soon…"
"I think it's better to keep such girlish sentiments."
"Re, really?"
"Yes, men generally prefer a bit more cuteness over being too cold."
Well, someone like Lorein would just overwhelm her partner with her stunning face and figure.
But I didn't say that.
Right now, the goal was to raise her favorability by comparing her with Lorein.
'Actually, Ryuz has some points where she's better than Lorein.'
In terms of charm as a woman, Ryuz was in no way inferior to her sister; she was just different in type.
I glanced down at Ryuz's cleavage.
There, an enormous amount of flesh was drawing the gaze with gravity.
'If this were really tutoring, I wouldn't have been able to concentrate because of her breasts.'
Like Lorein, Ryuz's chest was no joke.
Maybe because of her height, it seemed even larger than her sister's in perspective.
But Lorein's felt more firm, so to speak.
Holding back the desire to squeeze those breasts right away, I slowly started the lesson.
"First, since you've mostly learned the basics at the academy, I'll skip that. I don't have much time, so I'll focus on practical lessons."
"Yes! That's what I want!"
Ryuz nodded.
She was a student full of enthusiasm.
"And during the lessons, I'd like you to always call me teacher. Is that okay?"
"Of course! Ah, and feel free to speak informally."
"Hmm, should I?"
"Sure! You're now my 'own' teacher, right? We're not just exercising. I'm really learning."
Ryuz emphasized certain words as she spoke.
She seemed concerned about the sword practice sessions between her sister and me.
I didn't expect her to express it in this way.
Anyway, it was good news for me.
"Then I'll speak comfortably. You're like a younger sister anyway."
"Yes, from now on, call me Ryuz in a friendly way. That's an order from your student!"
After briefly going over the rules during the lesson, we quickly moved on to the lesson itself.
"First, I'm going to focus on teaching you a specific magic. I recommend this one until you get properly familiar with it."
"Wha, what?"
Ryuz was slightly startled by what I pulled out.
It was because I had placed a wand on the desk.
'Well, it's no surprise, given she's been to the academy.'
Although wands were commonly called the symbol of a magician, they were not widely used in this world.
There was a prevailing view among magicians that using a wand was somewhat contemptible.
It was similar to the idea that fantasy and SF were not featured in the Shinchun Literary Awards.
But since I, who was called the continent's greatest magician, started with a wand, Ryuz's face became curious.
"Is it really okay to do this?"
"Of course. It's my principle that it's best to practice with a wand before you get used to magic."
Becoming familiar with specific magic was like working out at the gym.
If you trained hard and consistently every day, soon you'd be handling heavier weights.
And there was no reason not to use 'equipment' to develop specific muscles further.
"Normally, using a wand slows down the casting speed, and many lose in magical duels. But that's a prejudice made by those who have never experienced a real magician's battle."
There were only two situations a magician faced when casting in real battles.
Either casting magic while a teammate staunchly protected them.
Or casting while dodging a sword coming right at their face.
"In real battles, you rarely have the leisure to cast spells comfortably like in the Magic Tower. Honorable fight? That's just a fairy tale bluff. In a real battlefield, relying on a wand is much more stable. Plus, it can be used for self-defense."
"Hmm, but isn't it a bit much to rely on a tool from the start?"
I chuckled and said.
"Ryuz, do you know how much knights like Leon or Lorein obsess over their swords?"
"Um, I guess?"
"Even skilled swordsmen pour enormous amounts of money into a single craftsman's sword. 'A good writer doesn't blame his pens'? That's all wrong. There's no reason to refuse a tool that enhances your talent."
Ryuz seemed convinced by my words.
Well, as a magician with overflowing achievements like me, my words were inevitably trusted in the magic world.
Who could argue with someone who has defeated the Demon King's army?
"So, I use this wand to cast magic?"
"Yes. But initially, wands require some technique, so we'll need a bit of practice. Let's start with getting familiar today."
I demonstrated first, holding the wand.
"Like this, give it a flick."
As I swung the wand, a white sphere floated around.
It was a simple spell that I could do just by flicking my fingers, but this time it was for demonstration.
"Hmm, I can cast this kind of magic if I concentrate."
"It might still be a bit difficult with a wand at first?"
Ryuz began the lesson earnestly, holding the wand seriously.
After making a few more attempts and trying it herself, Ryuz still looked puzzled.
"Um, I'm not sure how this wand thing works. It's harder to feel than using my hand."
"It's okay. It's not supposed to be easy from the start. Watch closely?"
I embraced Ryuz from behind and firmly held her wrist, which was holding the wand.
I felt her body stiffen for a moment but pretended not to notice.
"Ryuz? You need to concentrate."
"Yes, right!"
"Like this, flick your hand."
I helped her align, and Ryuz raised her magical power.
Then, a light sphere, slightly smaller than the one I made, appeared in front of us and soon disappeared.
"Wow, it worked!"
"Don't forget this sensation, and keep practicing."
"Ah, yes! Now that I've tried it once, I think I get it!"
Ryuz, smiling brightly, then met my eyes while I was still holding her from behind.
Her cheeks reddened at the same time.
"Phew, and teacher?"
"Yes?"
"Next time you do this, please tell me in advance. It's not good for my heart."
"Hmm, was I too inconsiderate?"
"No, I mean, it's not that I dislike it."
Ryuz's gaze then fell on my hand.
"…Your hands are quite big, teacher."
"Really? I've never really thought about it. Want to compare for a bit?"
I extended my palm first, and after a moment of hesitation, Ryuz placed her hand against mine.
Her eyes seemed to change slightly.
"Ah, um, yeah… It does seem big. Is it the difference between men and women?"
"It's generally the case that men have larger hands. Mine have gotten a bit bigger with training, too."
After a moment like that, I gently squeezed Ryuz's fingers.
"…!"
"Ryuz's hands are pretty too. Feminine and suitable for magic."
"That, that kind of compliment is also prohibited....."
"I think praising is essential and a virtue for a teacher?"
As I said this with a smile, Ryuz's face turned even redder.
Probably right now, Ryuz must be feeling overwhelmed.
She had a 'longing for praise' after all.
Every time I said this, her heart must flutter uncontrollably.
"Hmm! Hmm! So, will we continue training with the wand for a while?"
"Well, for now. There is actually a quicker way to get familiar, though."
"Oh? What is that?"
Ryuz asked with great interest.
"It's about engraving magic directly into the body. It makes gathering and activating magic much more efficient. I particularly value this method."
"Engraving magic into the body… Are there no side effects?"
"Not at all. It actually becomes more efficient quickly. It's especially effective for beginners who are not familiar with magic."
"For beginners…?"
"Exactly, it's also about awakening potential in those who lack natural talent for magic."
"Ah...."
Ryuz seemed to ponder something for a moment.
After a brief consideration, she asked me.
"Then, could you engrave it on me?"
"I don't mind, but… didn't you say you were a bit scared earlier?"
"It's okay! I want to get familiar with magic quickly!"
"Hmm, shall we? It's not that difficult, and you can cancel it anytime if you wish."
"Yes! Please, I'd appreciate it!"
I suppressed a laugh inside and secretly used an item.
[Item Window]
Name: Charm of Affection (Single Use)
Description: You can engrave a charm on a designated target. The more physical contact with the charmed target, the more their affection for the user increases. Once the affection reaches a certain level, they become aroused and enter a state of estrus. Once the affection is maximized, the location of the charm can be changed to above the womb, allowing the user to increase the target's arousal at will.
Soon after, a heart-shaped pink mark was engraved on the back of Ryuz's hand.
"Wow, it's cute! Is it always this shape?"
"I chose it because I thought it would suit Ryuz well. It's pretty and cute, just like Ryuz."
"Hehe, is that so?"
Ryuz gazed at the mark engraved on her hand as if it were a treasure.
Her innocent smile, unaware of its true nature, was adorable.
I brought my finger to the mark on her hand.
-Twitch!!
At that moment, Ryuz noticeably shivered.
Her cheeks flushed again.
"What's wrong?"
"Ah, nothing… nothing at all."
She tried to deny it, but it seemed like the effect of the mark was taking hold.
The characteristic of this mark was that physical contact increased affection.
As the effect intensified, just touching me could make her excited.
Having engraved it and then made direct contact, she must be feeling peculiar.
Of course, it would take some time to fully awaken its power.
'It's just a matter of time.'
As just seen, physical contact during the lesson could be freely made.
Of course, too obvious contact might raise suspicion, but I had the excuse of teaching her how to use the wand.
That was also why I recommended wand training.
Now, Ryuz would gradually fall for me with each lesson.
To the point where just seeing me would excite her.
'Well, the effectiveness of wand training itself is real.'
I slowly infused magic into the mark.
If it was just engraved, she might be suspicious.
"I'll add a bit of my magic to make it easier for you to cast spells. Let's keep practicing. Ryuz, you definitely have talent among the magicians I've seen."
"Yes, yes!"
I patted the lively, responsive Ryuz's head.
Even that gesture made Ryuz tremble slightly.
I began to look forward to how it would be when the mark was fully activated.