Dearest Sisters
Tang Ga-in moved quickly. She vigorously wiped away the traces of their tryst left on the training ground using a sweat towel, immediately threw it in the wash, and secretly supported Tang Hwi—who had fainted after she slapped him a bit too hard—back to her room. Soon, the maidservants would enter the Patriarch's Pavilion to attend to the household chores, so she had to lay him down before then. Since they spent at least half a shichen focusing on household affairs before using the remaining time to serve the direct descendants, she had nearly a full shichen of leeway right now.
After bringing him into her room, Tang Ga-in quickly laid him on the bed and gave him a brief medical examination. Although she had not yet formally learned poison arts, the preparatory process for mastering them required a high level of medical knowledge, far beyond basic understanding. Checking his pulse to diagnose him and circulating her inner qi to inspect his body was not a difficult task. Since he had suffered a Qi Deviation, there had to be some trace left behind. Thus, she kept her mouth tightly shut, focusing entirely on infusing her inner qi into him.
Because of this, she did not realize.
Perfect.
She did not realize that Tang Hwi had not actually fainted. He had briefly activated the Turtle Breathing Technique to feign unconsciousness. He was deliberately putting on an act to see how Tang Ga-in would react to his fainted state, using her response to formulate his future plans.
She learned well. She has talent. But her experience is shallow.
Medicine, like martial arts, was a profound and complex discipline. Therefore, someone like Tang Ga-in—who possessed great talent but lacked practical experience—was actually the easiest type of person for him to deceive. He deliberately twisted his acupoints and disguised his pure Demonic Qi as poison, making it look as though the lingering traces of Qi Deviation remained. As a result, every time Tang Ga-in infused her energy to circulate through Tang Hwi's acupoints, her face grew increasingly pale and grim. To anyone's eyes, the clear remnants of Qi Deviation were still present, far from fully cured.
Since the nature of a Qi Deviation rampage always manifested in the exact same pattern no matter how many times it recurred, it meant that if Tang Hwi went wild again, he would inevitably try to ravish someone once more. No matter how much she turned it over in her mind, she could only see two ways to prevent Tang Hwi's Qi Deviation.
The first method was to destroy his Dantian. Shattering his Dantian and dispersing his internal energy would leave him physically weak, but it would prevent him from ever going on a rampage due to Qi Deviation. Without internal energy, even if a Heart Demon took hold of him, he wouldn't die from it.
The second method was to endure his rampages. According to her examination of his body, while his acupoints were twisted and damaged from the Qi Deviation, there were also signs of recovery. In other words, by ravishing her, Tang Hwi's Qi Deviation had been partially alleviated, allowing him to recover slightly.
"Haaah... What on earth am I supposed to do about this...!"
"Ugh... Ah..."
"Ah! Brother? Are you awake!"
"Ga-in... is that you?"
When he tried to sit up, his voice thick with exhaustion, Tang Ga-in hurriedly rushed over and pushed him back down.
"You shouldn't get up yet, Brother. You aren't fully cured, and your movements are still unstable. At least wait until your acupoints settle down before you move."
"Is that so... I understand."
Although there were differences in their martial arts mastery, Tang Ga-in was a woman who specialized in throwing weapons. This meant she wasn't strong enough to overpower a man without using her internal energy. The fact that she could so easily force Tang Hwi to stay down was proof enough that his body was in a terrible state. That realization made Tang Ga-in feel deeply uncomfortable. If only she had noticed his Heart Demon sooner, none of this would have happened. This was a line of thought possible only because she cherished her family so deeply. In any other clan or sect, since a victim had been made due to Qi Deviation, they would have been clamoring to destroy his Dantian instead. Of course, it was precisely because she was this kind of person that Tang Hwi had designed this scheme in the first place.
"Ga-in. I cannot bear to face you. With the heavens watching, how can one who violated his own flesh and blood go on living?"
"Brother! Why are you talking so weak? This is exactly why I call you a loser!"
"But..."
"I can just help you."
Tang Ga-in said, holding the hand of the reclining Tang Hwi. Tang Hwi's Qi Deviation stemmed from a desire to satisfy 'the pleasure of a dominant ruler crushing an inferior.' Therefore, if the Qi Deviation struck again, he would inevitably ravish her once more. To offer help in this matter was not just incredibly embarrassing; it was deeply immoral.
"I'm saying... I'll help you..."
As she spoke, Tang Ga-in's face flushed a deep crimson, as if she fully understood the implications of her own words. What kind of younger sister in the entire world would offer up her own body to her brother just to help him overcome a Heart Demon?
Tang Hwi wore an expression of grim determination, as if such a thing were absolutely unacceptable.
"No. Absolutely not. What kind of brother in this world would covet his sister's body just to overcome his Heart Demon? Just let me die. You should pretend you know nothing and go on to fulfill your marriage vows with the Tiger Hero of the Hebei Peng Clan...!"
His voice carried a tragic resolve, suggesting he was prepared to embrace death if necessary. Hearing this, however, Tang Ga-in couldn't help but narrow her eyes in disbelief. Because she saw it. She saw Tang Hwi's lower half, where blood had rushed furiously, clearly visible through his disheveled, torn clothes that he hadn't yet changed out of.
Staring at the front of his pants, which bulged so fiercely it looked as if the fabric might tear, she felt as though she were looking at a massive mountain. Looking at this towering, magnificent sight, she found herself idly wondering if the Five Great Mountains of China should be renamed the Six Great Mountains, before rebuking him with a pouty voice.
"Then what is this?"
"Th-that is..."
"You are seriously the worst. No matter how much of a loser you are, what kind of brother gets hard just looking at his sister? You're the absolute lowest. Idiot. Sea anemone."
Having no excuse, Tang Hwi turned his head away, unable to look his sister in the eye.
"Hmph! Coward."
"...I have nothing to say."
Yet, Tang Ga-in's heart was also pounding wildly as she looked at him. The moment she saw Tang Hwi's erect member, she had swallowed hard, a tremor running through her lower abdomen. She barely managed to suppress her shock, hiding the fact that her own private parts had already begun secreting slick arousal. Taking a hundred steps back, she could excuse having felt pleasure when she was ravished. She was reaching the age of peak sexual desire, so she might have felt a reflexive lust while their bodies were joined. But right now, they weren't even doing anything. Why on earth was she getting sexually aroused just by looking at Tang Hwi's erection?
Am I... really this lewd? Is that what this is?
In reality, it was because her Dantian, having absorbed his semen refined by the Yin-Yang Erotic Art, was naturally resonating with Tang Hwi's identical energy. Unable to know this truth, Tang Ga-in had no choice but to believe she was simply a depraved, lustful girl.
"In-in the future, if you feel like your Qi Deviation is acting up again, sneak into my room. I'll... take care of it for you."
To hide the fact that she was dripping wet, Tang Ga-in put on an exaggeratedly haughty, tsundere-like attitude. Seeing her like this, Tang Hwi wore an expression of helpless resignation and slowly nodded.
"I will try my absolute best to endure it... but if I truly cannot, I will do so."
"I'll have to visit her often. If I damage my acupoints a bit more, she won't suspect a thing."
Returning to his room, Tang Hwi muttered quietly to himself. He knew that even if he did so, Tang Ga-in would only grumble with her mouth; she wouldn't be truly angry. She was bound to be thoroughly confused by her own body.
The Yin-Yang Seed has taken root perfectly. As expected, because she was a virgin, the effect is even more potent.
However, after a few days, she would begin to accept that confusion as her own genuine feelings. To prevent her from snapping out of it, he couldn't give her chaotic mind any time to recover. Although the Yin-Yang Erotic Art was a powerful technique, it wasn't so absolute that it could easily subjugate masters. If that were possible, it would have long been classified as a demonic sorcery rather than a sexual cultivation art.
Now that I've claimed Tang Ga-in, I just need to find opportunities to sleep with her whenever I can, keeping an eye out for the rest of the family. Once Sister sees Ga-in accepting me and undergoing Metamorphosis, persuading her won't be an issue either.
That left only one remaining problem.
"Mother... How do I make a master of the Transcendent Realm fall madly in love with her own son?"
Subduing her by force wouldn't be difficult. Tang Hwi would grow rapidly using the memories of his past lives, and reaching the Transcendent Realm—the bare minimum requirement to be considered one of the Top Ten Masters of the Jianghu—would be easily within his grasp. The problem lay in the time-consuming process of conditioning her. A master of the Transcendent Realm who was already a mother would take ages to become addicted to him, even with the Yin-Yang Seed of the Yin-Yang Erotic Art. Unless she opened her heart willingly, taking her by force would never make her yield her mind.
In my past life, I failed to overcome that weakness, got caught by the Murim Alliance, and was branded a public enemy. What a memory.
The memory of five of the Top Ten Masters laying an inescapable dragnet to gang up on him was one of the few things that still made his blood boil. Although it was a mistake and he had ultimately died in that life-and-death struggle, he had no regrets about having had the rare experience of fighting for his life against five of the realm's greatest masters.
For now, I should focus on conditioning Sister and Ga-in. I'll train my sisters while taking care not to get caught by Mother.
Since there was no immediate solution, he decided to put it aside for now. Having reached this conclusion, Tang Hwi sent a maidservant who arrived at the appropriate time to invite Tang Ga-hui to dine with him. As before, his invitation was accepted, and the two spent a warm, harmonious time together as brother and sister.