## Chapter 361 – Collecting Debts
In the end, I ended up dropping my pants in the guild’s backyard. As I stared at Karin with my pants down, she gave me a sly smile and took off her blouse.
“Standing at attention, huh?”
“Take off your bra too.”
At my request, she removed her black bra. ㅡSlip. Her ample breasts were revealed, along with her cute pink nipples.
Karin, the areola champion.
“Those are some cute nipples, no matter how many times I see them. Makes me want to pinch them.”
“Knock it off.”
Seeing Karin, who had been overwhelming me with her swordsmanship just moments ago, undressing in front of me, I couldn’t hold back any longer.
I wanted to taste her insides right away.
Of course, Karin, the virtuous wife who knew my heart, walked towards the wall in a topless state, undid her belt, and lowered her pants. However, she couldn’t take them all the way down because she was wearing long boots.
With her pants down to her knees, she lowered her panties at the same speed, placed her hands on the wall, stuck out her butt, and turned to look at me.
“Come here, wanker.”
“Who’s the wanker?”
“You sprayed all that stuff on this wall and you’re saying you’re not a wanker? I can still smell the semen, you bastard.”
“Ugh.”
I strode towards Karin.
The guild’s backyard, where no one ever comes… a space that could be considered semi-outdoors. In such a place, Karin was holding onto the wall, her lower body completely soaked, swaying her hips slightly, and seducing me.
It was too stimulating.
ㅡSquelch.
“Aah…!”
A moan escaped as I grabbed Karin’s genitals.
Such a cute reaction as expected. Karin is a cute woman. It seems like Karin is the person who doesn’t suit cuteness the most, but every time I see her actions, I feel like she’s cute.
“Wow, look at all that juice. When did you get so turned on?”
“I don’t know, you husband bastard… Just put it in already.”
Karin’s genitals were already soaked with fluids, and as soon as I stroked them a little, my hand was drenched.
I reached out and put my finger, soaked with fluids, into Karin’s mouth, and with my other hand, I slowly and carefully rubbed Karin’s genitals with great care.
“Ugh… Haa…!”
As much effort as I put in, Karin also sucked my finger with great care. Such a kind older sister, of course, she can’t help but be cute.
“Hyaaah!!”
Eventually, after about 3 minutes, Karin shuddered and climaxed.
“Hehe, you defended so well with your sword, but you’re terrible at this.”
“Haa… Is my husband sulking because he lost earlier? Don’t play with your hands and just put it in. Even if I win at swordsmanship, I always let you win when we fuck.”
“What is this kindness…?”
When Karin, breathing heavily, said that, it was as if a halo was radiating from her. She lets me win during the act, such a bright light…!
“What is this light…! Kuaaaack!!!!”
“Cut the crap.”
In a state of extreme excitement.
I immediately grabbed Karin’s waist and inserted myself. Because I couldn’t stand it without putting it in right away. ㅡSquelch. A hot pussy warmly wrapped around my thing and tightened.
When I pushed it all the way in, the head of my penis touched her cervix.
“Kuh…!”
A groan escaped from my mouth as well.
“Ah! Hey, don’t grab my waist… Nipples…”
“Pinch them?”
“Yeah… Do that for me.”
I pressed my body against Karin, who answered strangely docile, and grabbed both breasts. They’re big as expected. They’re fun to touch. Of course, they’re smaller than Winia’s, but Karin’s breasts have a special charm.
As requested, I pinched her nipples hard and moved my waist while deeply inserted.
“Haa…! Kuheut…! Sheeebaaal…! Fuck, fuck…!”
Her nipples were like pleasure controllers, and every time I squeezed them, the tightening would get stronger or weaker. I freely adjusted the stimulation and teased Karin.
“But, sis. There’s something I wanted to ask you today.”
“Ah! Haa, haaang! Heut…! Fuck… There, I like it there…!”
“Sis?”
Can’t she hear me?
Thinking I’d ask later, I poked around inside Karin. Then, the fluids that burst out soaked her pants. Of course, I didn’t care and just kept pulling on her nipples and fulfilling my desires.
“Fuck, fuck…! Fuck, nipples…! I like nipples…! Do it harder…!”
“You want me to do it harder here?”
“Hurry…! Do it quickly…!”
As she begged, I pinched harder, and Karin climaxed in that state. I felt like I was about to go too, so I shook my waist intently. Eventually, I ejaculated a lot inside her.
“Heukheut! Haa… Keep going.”
“Understood.”
No need for a break.
I kept shaking my waist and violating Karin while tormenting her nipples. I wonder if I was attached to Karin for about an hour like that.
“Hueut…”
In the end, I ejaculated about five times inside Karin and finished the act. She took a difficult breath while holding onto the wall for a while, regained her strength, and tidied up her clothes.
“Ha, fuck, that was so refreshing. Aah… I really came a lot, didn’t I? I feel like I’m going to get pregnant.”
“Want to do it now?”
“No. I’d be in trouble if we did it now. Ayu, do you love this pretty thing? Then shall we go up to the second floor? Let’s talk there.”
We went up to the second floor together.
Karin went into the shower room for a while and came out after washing. It seems like she only washed her body with water, except for her hair. I sat on the bed and asked Karin, who was wiping her body, about Sword Aura, which was my original purpose.
“What? Sword Aura? Are you already interested in that? Hey, even so, that’s progressing a little too fast.”
“I know. I’m just curious about how long it generally takes. First of all, how long did it take you?”
“I was already pulling it out and using it as I pleased when I was your age.”
When I was my age.
To be honest, if Karin and I were standing side by side, it would definitely look like I was much older, but here I can feel the age difference.
“In your mid-twenties?”
“Yeah. Ah. But this is an area where talent is a big factor. Of course, my husband’s skills are in the top tier among swordsmen of the same age. Usually, those guys can release Aura. But this older sister is in the top tier even among that top tier.”
Karin, wearing underwear, pulled up a chair in front of me, sat down, and crossed her legs. Karin, talking about professional techniques, looked somehow confident and authoritative.
“There are tons of other knights who can’t pull it out even after they’re over thirty. I told you, didn’t I? Only 20% of the new knights can freely manipulate mana.”
I nodded and listened to her words.
“It’s exactly 20%. The only guys who can freely use Aura. The rest, well, they increase and refine the mana pool accumulated in their bodies like our husband is doing now to improve their physical abilities.”
These were the words of Karin, who used to be a big shot in the Royal Knights. The reliability is very high. It was valuable knowledge that I couldn’t hear anywhere else, so my ears naturally opened.
“But even those guys who are good at it often can’t release Aura. But in fact, if you can’t pull out Aura, that’s enough to be a knight, so it doesn’t matter. Anyway, no matter how much they fly and crawl, it’s 20% on average, 20%.”
“It’s really small, isn’t it.”
Even in the Knights, where talented people gather, only about 20% can use Sword Aura.
Will Kim Katz be able to become an Aura Man?
“Well… this is just my feeling, but I think my husband will probably be able to do it.”
“Really?”
“I can’t say for sure, but you’ll be able to do it after some time. No, you have to do it. If you can’t, you’ll die by my hand.”
“No, why would I die? Save me, please!!!!!!!!!!!!!!!!”
“Don’t be surprised because I said it exaggeratedly, you bastard.”
“I was also surprised exaggeratedly.”
“You little shit, are you going to keep messing around while your older sister is talking? I’m going to punish you?”
“I’m sorry.”
Karin was about to hit me, so I immediately apologized.
“But, sis.”
“Why?”
“Can’t you… do it with your breasts just once?”
“What?”
I kept looking at Karin in her underwear, so I got an erection again. No, I naturally feel that way because I’m in this room.
“You’re saying that before I wash?”
“It’s because your body smells good, sis. Ah, please.”
“Tsk, you cute little thing.”
Karin, who took off her bra again, came up to me and knelt down.
“I have to do what my husband asks me to do.”
“So touching.”
Then, she put my thing between her breasts and slowly shook it up and down. A warm heat is transmitted between the breasts… It feels like I’m in a hot spring.
“Well, anyway. Take it in that state. But you don’t have to be obsessed with Aura.”
Karin, who was doing a boobjob, continued to speak.
I reached out and touched the side of Karin’s hair and asked.
“Obsessed?”
“Because Aura is not absolute.”
“Not absolute?”
ㅡRub rub.
I don’t know why, but I feel more focused than usual. It’s natural. I’m doing something I like, so I can’t help but be more focused.
“What determines life and death at a crucial moment is only quick wit and adaptability. And absolute skill and tenacity.”
“No, why are you saying four things when you said only?”
“Ah, fuck. Just listen because I’m saying it. Are you going to keep talking nonsense when your older sister is kindly educating you while doing a boobjob?”
“Sorry.”
Karin extremely increased the speed of her boobjob, no… that’s a bit much. Anyway, ‘breast rubbing’. It’s still bearable because I’ve already come five times.
Let’s leisurely enjoy my wife’s service.
“Of course, if you can use Sword Aura, you can gain an advantage over those who can’t. But that’s not important. Releasing Aura consumes too much mana as much as its power is strong.”
That would be the case.
“It’s really a hidden card, so it’s a loss just to have a situation where you have to use it. It’s almost never the case on the battlefield, let alone a one-on-one duel. If you use it once and your mana runs out and you get tired, you’ll die. I hardly ever use it.”
“Uh… that makes sense. Well, if your mana runs out, your strength will run out too.”
“Yeah. So what’s important is not that kind of technique, but absolute swordsmanship. If your swordsmanship is excellent, a guy without mana can beat a guy with mana. Likewise, a guy who can’t use Aura can beat a guy who can use Aura.”
To summarize, pulling out Aura is a good thing in many ways, but there are almost no situations where you can use it, and even if you do use it, you have to consider the surrounding situation.
“Sword Aura is just a hidden card at your level. It’s a secret technique that you use at a crucial moment when you’re fighting a life-or-death battle with an opponent of equal skill, or an opponent one level above you, to cut off the enemy’s breath. But if you use it, you have to risk your life.”
An absolute hidden card.
Aura is a technique that can give an opponent of equal skill a blow.
“But in a battle between such skilled people, they’ll probably suspect that each other can use Aura and be prepared for it, right? Unless you’re a guy who has a sense of being able to quickly draw up Aura, do you need even 1 second of preparation time? Then the game is over the moment that gap is created.”
Karin’s attitude of explaining in a gentle voice was reminiscent of a teacher. No, she teaches swordsmanship, so she is a teacher. Karin is always serious about education.
I was fascinated by Karin’s boobjob and explanation, and I could only nod.
“If you can’t burst it out immediately and maintain it for a long time like me, don’t be obsessed with it and just focus on swordsmanship training. If you spout Aura, that’s good, and if you don’t, that’s fine. In the first place, there aren’t many skilled people who pull out Aura.”
I listened to Karin’s story and thought about Aura. After a moment of silence, I told Karin that I understood.
“Okay, sis. I understand.”
“Was my education a little helpful? Husband?”
“You’re saying that I don’t need to be so obsessed with Aura. Swordsmanship is more important, so.”
“That’s exactly it. But aren’t you going to come?”
It’s already the limit.
I carefully asked her.
“…Can I spray it on your face?”
“Kyahreureu, this guy. Husband, you weren’t just thinking about spraying it on my face without listening to my explanation, were you? You’re going to die?”
“No, I heard everything. It’s a really important story, so.”
“Well, if that’s the case.”
ㅡHaheup.
Suddenly, Karin swallowed my thing as if she was swallowing it.
“No way.”
I ejaculated in Karin’s throat as it was. My extremely excited penis twitched greatly and spewed out semen for a long time. Karin slowly swallowed everything.
“No, fuck. You really came a lot. You came so much earlier, and you’re still producing this much?”
“It’s because your breasts are so good, sis. Th… thank you.”
To swallow it like this.
“Kyahreureu. You’re really so cute.”
Karin stood up and stroked my head.
“It’s time. Go now. Come again next time. And if you’re stuck with anything related to swordsmanship, just ask me like today. I’m your teacher too.”
“Karin sis…!”
Karin accepted my hug.
I stayed like that for a while, then put on my clothes and left the guild.
Anyway, I came to a conclusion about Sword Aura in my own way.
Honestly, Karin said that, but a hidden card is extremely attractive. I’m Mana Man Kim Katz. If I can just pull out Aura, I think handling it will be a piece of cake.
Sword Qi (劍氣).
That is the goal that lies before me.
As I was walking in thought, someone called me.
“Y-you, are you the Heavenly Demon?”
“What? Mariel?”
