The Golden Pillar
Huh? Why did I level up? Sex shouldn't grant EXP unless it's tied to a special trait.... I opened the level-up log. The words Kill: 3 were displayed there.
Ah! That bastard who'd taken my elbows to both sides and had his ribs shattered must have died. The broken rib had probably pierced his organs and dealt a fatal wound.
Still, whether it was thanks to the mental reinforcement drug strengthening my will or because this wasn't technically my first kill, I felt no shock at all.
Please select a trait
① Lightning Affinity
② Trickster
③ Regeneration Level Increase
They were all solid choices. Elemental affinity traits were versatile staples, and Trickster was a must-have high-tier trait if you planned to go the trap route. Getting it on your first level-up would let you fully commit to that path. As for the growth trait option that raised Regeneration's level, it would be fantastic later when the trait became harder to improve, but since my Regeneration level was still low, it was easily the weakest of the three right now.
Hmm, which one should I take...? I'd been pondering for about two seconds when another semi-transparent message appeared.
> The item [Yeouiju]'s [Potential Enhancement] option can convert the available level-up trait into a higher-grade random trait.
> Would you like to reroll?
The current options were fine except for Regeneration, but refusing a gacha run wouldn't make me a real man.
The moment I strongly willed myself to change it, the previous three choices vanished and three new ones appeared.
Please select a trait
① Sword Master
② Confectionery Artisan
③ Golden Pillar
To explain from the start, Sword Master was a higher-grade trait than Lightning Affinity, but in a world where guns were everywhere, swordsmanship was a niche path. Sure, if you devoured every hidden piece and equipped top-tier gear it could work, but there were almost no paths that couldn't become viable under those conditions.
Next was Confectionery Artisan. While "Artisan" ranked higher than "Master," this was a classic dud trait. I was supposed to become the head of a massive conglomerate family; what use was being a master baker? At best you could make buffed bread or cookies, or raise favorability by gifting well-crafted pastries.
Finally, Golden Pillar was the highest-grade trait among the options. It was Legacy Unique rank, one tier above regular Unique. Above that were Legendary and Mythic, making this the third-highest tier. Even so, Legendary and Mythic traits had near-zero appearance rates, so Legacy Unique was considered top-shelf.
Legacy Unique Trait
Grants massive bonuses to sexual performance. Allows EXP gain through sexual intercourse. Makes it extremely easy to earn a partner's affection.
In the game it would have been trash. MegaCorp's Youngest Son was rated 15+, so there were no actual sex scenes, just time-skip fades. The targets were also extremely limited. At most you'd use it on prostitutes or gigolos (since female protagonists were an option), maybe one designated heroine. The only real playstyle was raising hookers' favorability to turn them into back-alley informants.
The idea of leveling up purely through sex had some merit, but the game was meant to be fun through combat. Watching the screen simply change from day to night with an EXP notification wasn't exactly thrilling.
But this world was both a game and reality. The phrase sounded contradictory, yet it meant the Golden Pillar trait could now be used on anyone, not just professionals. Of course I'd only use it on women. Seducing key female figures would benefit my future greatly. And I could level up without risking my life in deadly fights.
"Um... what are you thinking about?"
When I stayed silent, staring at the semi-transparent window, Han Yugyeong asked with clear worry in her voice.
"It's nothing. More importantly..."
You have selected the Golden Pillar trait.
Now that I'd chosen it, I had to test it out. Whether the trait itself was responsible or simply because reading its description had ended my refractory period, my cock was rock-hard again. I kissed Han Yugyeong and began warming her body that had grown cold.
"Mmm.... You're going again?"
"When I'm with a beauty like you, I need to do it at least a few times."
Han Yugyeong's sensitive body heated up instantly. As my hands continued their work, her love juices gushed from her pink pussy like spring water bubbling from a mountain source. Thanks to the Golden Pillar, she seemed to be getting aroused even more easily than our first round.
"Haaang, ahh!"
Her moans grew louder and louder. Wet, rhythmic slapping sounds filled the room.
"Put it in, Ryuta..."
"Got it."
We'd done missionary last time, so this round was standing. I pulled her up, pressed her back against the wall, and thrust inside while remaining on my feet. The height difference made it slightly awkward, but the sensation was completely different from before. Her insides squirmed and squeezed my entire length.
"Ahh, ngh, huu.... It feels different from earlier!"
"You like it?"
"Yes.... I love it! Harder, please!"
Han Yugyeong was a woman who enjoyed it rough. After thrusting while standing, I lifted one of her legs. She stretched it straight up like a ballerina. Her flexibility was incredible.
Balancing on one leg forced tension through her body, which naturally changed how she felt inside. Of course, she felt the difference too.
"Hngh, ahh.... So deep."
Our sweat and fluids mixed together. The room filled with heavy breathing and moans.
"Haaang, just now it felt so good, but I didn't know it could feel even better... mmm...."
The way she spoke through her moans proved the Golden Pillar was working. Even as I moved, I instinctively knew exactly where and how to thrust to make her feel even better.
"Haaang! Ahng! Ahh! I'm... I'm about to...!"
"Me too...!"
I pulled out at the last second and came all over Han Yugyeong's face. Seeing my cum splattered across her beautiful features gave off an intensely erotic vibe. Without any refractory period, my cock grew painfully hard again. I grabbed some tissues, wiped her face clean, then sucked on her breasts while guiding her hand to my shaft.
"Hmm? Why is it still so hard?"
"This time I want to do it from behind."
"Kyaa!"
I flipped her over and thrust in from behind. Her pussy was still soaked with her juices, so I slid in smoothly.
"Haaang!"
After that we went at it wildly three more times.
###
The Golden Pillar's effects were undeniable. Han Yugyeong's affection had skyrocketed. What started as a combination of alcohol and mood had turned into her clinging to me more and more, acting cuter with every round. Even now she was looking at me with honey dripping from her eyes while wearing nothing but a sheet.

Hmm.... What if she tries to follow me all the way to Japan? Neither of us had any real power yet.
But Han Yugyeong didn't seem ready to go that far. She said that as someone from a chaebol family, the chances of marrying the person she wanted were nearly zero. She would simply cherish the memories we'd made. The way she shed a few tears while saying it made her look like the tragic heroine of some drama.
"There's one way we could be together."
"What is it?"
"You just have to become the chairman of that conglomerate family. Then you can be with whoever you want."
"Ah! That's right. If I become chairman, then the person I want..."
I'd accidentally given the protagonist some motivation. Seeing that she was about to obediently follow the marriage arranged by her family, she was clearly heading straight for the bad ending. I needed to give her at least some push. In MegaCorp's Youngest Son, if you started as a female character and meekly did everything the family ordered, including the arranged marriage, you'd end up with the puppet ending. It was a bad end where you weren't happy and lived like a doll trapped inside the house.
Still, she was the protagonist. She ought to at least challenge for the position of Shingang Group chairman. For the next two days I took Han Yugyeong around Seoul's hidden spots under the pretense of dates. I gave her useful items and elixirs. I bought her more than five guns, elixirs that increased projectile accuracy and basic physical abilities, and even the Barrier Necklace that created a defensive field. It was a national-tier item known as "Bangmok" in the game.
Finally, I shared several pieces of useful information from the vast amount I knew, things she could actually put to use.
Of course I wasn't just giving. I made sure to collect every item I absolutely needed for myself.
Because we'd had sex multiple times over those two days, her affection had risen enough that she didn't question the information or items I gave her.
Right before I boarded the plane back to Japan, Han Yugyeong finally burst into tears. Her crying face looked so sexy that I impulsively dragged her into the bathroom and took her there. Whether it was the unusual location or her high affection, she experienced an incredible orgasm.
I waited for her to recover, nearly missing the flight, so our final goodbye had to be short.
"I'll come visit Korea again."
"I'll go to Japan too."
After one last kiss with Han Yugyeong, I boarded the plane. Another semi-transparent window appeared.
Please select a trait.
Of course. After all the sex we'd had, it would be strange if I didn't level up. And with that, my short trip to Korea came to an end.