Promotion to 10th Class Protagonist
The next morning.
Whick, whick, whick, whick......
“Hoo... Hoo......”
I was diligently jumping rope in the yard near my house.
It hadn’t even been a full year since my discharge from the military, but because I hadn’t exercised at all these past few months, my body wasn’t listening to me.
Haah.
It’s tough. So tough.
“Oh. You’re working out hard, I see?”
While I was jumping rope absentmindedly, a voice came from behind.
“What is it? Do you have someone you want to look good for?”
I turned my head in the direction the voice came from. Standing there was a beauty with a pure and refreshing charm.
It was Jang Yehwa.
I stopped jumping rope for a moment and smiled bitterly.
“No. I think I’ve been too lazy lately. From now on, I’m going to try to put in some real effort.”
“Aha. That’s a good idea~.”
She smiled brightly.
I smiled inwardly at her laughter. Well, the part about being lazy was true, but the reason I was exercising was for the coins.
The previous evening.
After testing out the skills I had, I thought about how I would behave going forward.
The conclusion I reached was to first focus on collecting coins!
When I thought about it, the coin rewards from the daily quests weren’t stingy at all.
Five thousand jump ropes for eighty coins. With roughly an hour of exercise, I could earn coins that could genuinely raise my stats.
I couldn’t raise my own stats yet, but it would definitely be possible later. Plus, the more I raised my stats, the less time it would take to earn coins in the future.
I shouldn’t be satisfied with just completing three daily quests. Three was the minimum amount I had to do in a day, and it was best to complete as many of these daily quests as possible.
I asked her.
“By the way, are you heading out now?”
“Yes, I had a fun time with Sujeong after so long. I need to get going now.”
“I see. Get home safely.”
“Yes, and you keep working hard on your exercise, Jinhyun! Fighting~!”

She struck a cute pose to cheer me on, then turned around.
It was adorable.
How could even behavior like that be so cute?
Smacking my lips, I quickly finished the remaining two hundred jump ropes.
Congratulations! You have completed the daily quest 'Basic Physique: Complete 5,000 jump ropes.'
“Good.”
Watching the coins accumulate felt quite satisfying. Combining the three daily quests I completed yesterday evening with the one I just finished, I had already gathered 810 coins.
“But I can’t be satisfied with just this much.”
I looked in the direction Jang Yehwa had gone.
‘Has she left?’
She had. She was gone.
After confirming that she was gone, I quickly went inside the house and cleaned myself up. After working up a good sweat and finishing a refreshing shower, I immediately used my skill.
“Black Room.”
A portal to the subspace opened, and I stepped through it.
After passing through the strange sensation, the view of a luxurious room spread out before me.
“Black Room. Transformation, Threat Mode.”
- Crack, crack.
My flesh and bones twisted one after another.
“Hoo.”
I looked at my appearance reflected in the mirror and nodded. No one would be able to think that this appearance was the original Cheon Jinhyun.
After staring at the mirror for a moment, I took a deep breath.
“Alright......”
From now on, I would summon Kang Sujeong into this room.
What I was going to do after summoning her was......
It was obviously set in stone.
I could have summoned her yesterday, but there were preparations to make, and since Jang Yehwa had been by her side until now, I decided to do it starting today.
Changing my appearance and summoning her into this mysterious subspace was indeed a perfect crime, but there was a huge difference between having someone witness her disappearance firsthand and not.
Even if she reported it to the police, without any witnesses, it would clearly be dismissed as some absurd story.
In truth, I could have diligently earned coins by completing mental and physical daily quests every day and slowly raised her affection to capture her, but that would take far too long.
“Well... honestly, that’s just an excuse.”
To be frank, I didn’t think I could hold back any longer.
Her body and looks were exceptional. Just thinking about it made my little soldier below stand at full attention.
Having acquired these mysterious skills and with such a delicious treat laid out right in front of me, there was no way I could resist. It was a completely different situation from back when I was with Yoon Yujeong, who only had candy that raised affection for a few hours.
Besides, if I had sexual intercourse with her, I would be able to earn an enormous amount of points every single day.
“I really am trash.”
To think I was even considering training a person.
I had thought of myself as a citizen with an ordinary mindset, but it seemed that wasn’t the case.
Still, even if I was a villain, the skills were already in my hands. Since I had obtained the Heroine App with its mysterious powers, wasn’t it only right that I make full use of it?
Rationalizing it like that, I walked over to the corner of the room opposite the bed and table.
There, a single vending machine was installed.
It was the voice of a sexy woman. I looked at the vending machine and smiled with satisfaction.
‘To think there was a vending machine like this... I had no idea.’
The previous evening.
After finishing the daily quests and pondering the skills, I realized there was a vending machine inside the Black Room and had visited once more.
That was the first time I stood in front of this vending machine, and it sold mysterious sex-related products.
The reason I believed I could thoroughly train Kang Sujeong was all thanks to this vending machine.
The vending machine displayed a total of forty items, with ten items per row across four rows. It seemed like two rows were fixed items, while the other two rows changed daily.
I looked at the displayed items.
Below each item on the vending machine, the item name, price, and a simple description were written.
Make Her a Queen! (70 coins): Easy-to-swallow pills! 10 for 70 coins! Take the pill and she becomes a queen!? Enjoy being insulted as much as you want by her sadism exploding for 6 hours!
Irresistible Pleasure (40 coins): Easy-to-swallow pills! 5 for 40 coins! After taking the pill, her entire body weakens for 3 hours and pleasure doubles!? If there’s a girl you want to discipline, try it immediately!
To Me, Pain is a Reward (60 coins): Cream to apply! 240ml for 60 coins! If you apply the cream, the applied area turns pain into pleasure for 3 hours!? Let’s stop getting annoyed by pain!
Let’s Have a Baby Later, For Men (50 coins): Easy-to-swallow pills! 20 for 50 coins! I want to enjoy more for now! When you take the pill, it releases safe sperm without pregnancy worries for 12 hours!
You, Become My Dog! (950 coins): A cute dog tail to insert in the butt! Only 950 coins! The person with this tail inserted must add ‘woof’ at the end of every sentence when speaking! She is my cute dog!
“They’re really diverse, huh.”
Having read the vending machine item descriptions, I was impressed once again. Even though I had seen them yesterday, the variety was still amazing.
“Well, what I’m going to buy is already decided anyway.”
There was no need to hesitate. I had already decided what to purchase.
I selected the item and pressed the button on the vending machine.
- Beep
- Clunk!
Once the purchase was complete, the item came out from the bottom of the vending machine. Aside from paying with coins, it was similar to a regular vending machine.
“So if she eats this, the pleasure doubles.”
With a fascinated expression, I picked up the item that had come out of the vending machine and examined it.
Its appearance was just like ordinary pills you could buy at a pharmacy. The label on the rectangular box simply had the item’s name written alongside the Heroine App’s trademark red heart.
But well, the effect would definitely work as described. I already had firm faith in the power of the Heroine App.
“I should buy the rest as well.”
After collecting the items from the bottom of the vending machine, I looked at the Heroine App screen and let out a small sigh.
‘The coins are disappearing so fast......’
I had gone through the trouble of earning up to 810 coins, but it had already dropped to 620.
“Well, even so, the preparations are pretty much finished with this.”
I placed the purchased items on top of the table.
Then from the storage unit next to the table, I took out the remaining ‘Water of Desire’ that I had used on Yujeong noona and a cup, adding them as well.
The storage unit was a prefabricated one I had bought from Daiso yesterday. I had set it up because it seemed I would have more things to store in the Black Room in the future.
‘I’ll have to replace it with a nicer one later.’
For now, I had installed a cheap one.
Inside the storage unit were clothes suitable for my ‘Threat Mode’ self, along with the leftover candy and Water of Desire from Yujeong noona, and various other basic supplies. Since none of my original clothes fit this body, I had hurriedly purchased and stored new ones the previous evening.
I rummaged through and put on some simple, comfortable clothes.
With all the preparations complete, I finally shouted the name of the skill one last time.
“Summon, Kang Sujeong.”
- Whoosh!
Then, as if she had just finished taking a shower, Kang Sujeong appeared before my eyes wearing nothing but a towel draped around her neck, her naked body still glistening with water droplets that hadn’t fully dried.
“Haa, so refreshing... Huh? Wait...!?”