Jeong Seong-yeon, one of only five S-Class Hunters in South Korea, was leisurely drinking coffee on the top floor of the Hunter Management Bureau.

  After being summoned by his mother this morning and forced to take on a troublesome matter, he had quickly handled the assignment and was now using his authority to enjoy some free time.

  Though it had been bothersome, his mood was surprisingly good.

  After all, his foolish younger brother had turned into an adorable little sister.

  While it couldn't be completely ruled out, as his mother said, that it might be the work of a memory-stealing monster, those clone monsters typically stole appearances along with memories. Since the appearance was different, the possibility of it being a monster was greatly reduced.

  Moreover, the look in his younger sibling's eyes still held traces of jealousy toward him.

  What a pitiful younger brother.

  A highly capable father recognized by a major corporation.

  A mother famous even before retirement, still receiving endless offers.

  And then there was himself, one of only five S-Class Hunters in Korea, this towering wall. Things had been relatively peaceful during middle school, but once high school started, his younger brother had completely twisted.

  From his Awakening onward, he had caused commotions every year, and as a result, his younger brother had also suffered exclusion for being "that person's brother." He fought with classmates and was labeled a problem child.

  Given this, it was perhaps inevitable that after graduating high school, his younger brother had shut himself in his room. Their parents understood this too and didn't interfere much.

  He truly was a useless and clueless younger brother, but since he had suffered because of him, he couldn't help feeling guilty.

  Speaking of which, the Awakened Ability was truly strange, even he had been affected by it.

  While not absolute, it was generally believed that an Awakened's Ability reflected their inner desires or latent nature.

  To some extent, his own "Battle Qi" aligned with this theory.

  So if his younger brother had Awakened with such an Ability, did that mean he had always wanted to become a woman?

  He chuckled. After all, even his younger brother himself probably couldn't articulate his true feelings.

  He had simply waited quietly for the paternity test results, and when he saw the report, he couldn't hold back another laugh.

  [Probability of relatedness: 99.9%]

  Although there was the subtle difference of the sex chromosomes showing XX, he was relieved to confirm it was indeed his biological sibling as expected. Leaving a brief note behind, he headed home with light steps.

  My stomach was growling with hunger, but I still couldn't leave the chair.

  Although Mother had let her guard down a bit and seemed to trust me somewhat, though not completely.

  "Uh... Mom, can't I even go to the bathroom by myself?"

  "We'll go together."

  Going to the bathroom with Mom felt weird.

  Lunchtime had long passed, and the sun was already beginning to set.

  I could endure the hunger, but being forced to sit in a chair for hours was torture.

  Mom sat across from me, fiddling with her phone while keeping watch. Just as I was squirming uncomfortably, the electronic lock at the entrance beeped.

  With a series of beeps, the door opened. The person who entered was, of course, my brother.

  "I'm home."

  "Welcome back. How were the results?"

  Brother glanced at me and smiled as he pulled out the documents:

  "Of course, the results confirmed parent-child relationship."

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  When Mom saw the results, she held her forehead.

  Finally proven!

  It was confirmed that I was Mom's "son."

  Moving faster than Mother, Brother undid my restraints first.

  "Thanks, bro."

  "You should call me oppa now."

  "Just because I turned into a girl after my Awakening, you think you can make me call you oppa?"

  "You just did! Keep calling me that from now on."

  "Absolutely fucking not."

  "Mother, I'll take her for Awakened registration tomorrow."

  "Alright... It really is Si-yeon, isn't it? I'm sorry."

  "It's fine. This sudden change would confuse anyone."

  Only then did Mother pull me into a tight embrace.

  "I'm truly sorry..."

  My eyes suddenly grew hot, and I couldn't hold back any longer. Once the tears started, they wouldn't stop. I cried myself out in Mother's arms before finally calming down.

  Then came the shame.

  A twenty-year-old man crying over something like this... Then my brother suddenly scooped me up entirely.

  "Alright, Mother will prepare dinner. Si-yeon, go change in your room."

  "Bro? Whoa!"

  My vision suddenly tilted as he threw me over his shoulder, my balance completely gone. He carried me straight to my room on the second floor.

  After gently setting me on the bed, he said:

  "You need Awakening testing and registration tomorrow."

  Right. After Awakening, you have to register immediately.

  If they find out you went too long without registering, you get classified as an illegal Awakened and treated like a criminal.

  Most people go straight to the welfare center after Awakening, but I completely forgot.

  ...What an idiot. I should've gone right away.

  "Sorry, I should've gone to register directly."

  "No, coming home was right. If you went alone, the officials wouldn't have believed you anyway."

  Really? Elemental Type and Transformation Type Awakened do undergo minor appearance changes, but nothing as drastic as my complete transformation.

  I might be a special case.

  "Is that so?"

  "Speaking of which, you're becoming a Hunter?"

  "Yeah, I heard Si-hyun Awakened too? So I decided to become a Hunter with him."

  Brother looked slightly surprised. Well, that bastard Si-hyun only Awakened yesterday, so he probably hadn't heard yet.

  "That kid Awakened too?"

  "Didn't I tell you? I blacked out drinking with him yesterday. Next thing I know, I fucking Awakened too."

  "Fine, but can someone as weak as you really become a Hunter?"

  Well, he's not wrong. From what Mother told me about the lecture, my attribute stats aren't exactly stable.

  Especially in the eyes of this monstrous older brother, someone like me probably seems like an ant.

  "If I say I'm going to do it, I'll do it. Got a problem?"

  "No, I was planning to support you actually."

  Si-hyun mentioned this too. If I become a Hunter, nobody would dare cause trouble with an S-Class Hunter backing me.

  "Really?"

  I already started wondering what kind of support I'd get.

  Would he issue me Hunter equipment?

  "Of course~ But from now on, you have to call me oppa?"

  Fuck!! Is this a test to see if I can swallow my pride? Actually, no need to overthink it, who the hell would call you oppa!

  "Never mind, you don't have to. Just kidding."

  Brother wore that annoying smile. Seeing that expression that clearly planned to mess with me from the start, I swung my fist at him in anger.

  Of course, the bastard caught my attack without even blinking.

  "Oh? Your punches have more weight now?"

  Damn S-Class Hunter! I angrily pulled back my captured fist.

  "So what are you giving me?"

  Brother listed items like he'd prepared them in advance:

  "First, a full set of equipment and Weapons tailored to your size. Then a defensive Artifact for protection. If you want, I can assign you a capable Hunter as backup."

  "Just the equipment. For Si-hyun too."

  "Fine, understood."

  After my brother left the room, I collapsed onto the bed.

  Though some things felt frustrating, none of it mattered now.

  As I lay there staring blankly at the ceiling, I suddenly remembered the changes in my body.

  I got up and found a mirror. The reflection looked completely wrong - I had fully transformed into a female body. My original 179cm height had shrunk considerably, feeling at least a head shorter.

  Taking off my shirt, I confirmed my chest had indeed developed. Though I couldn't tell the exact size, it was definitely full. However, the texture felt different from how I remembered women's breasts feeling.

  Looking downward, my waist had narrowed and my hips were curvier than when I was male. Despite my entire frame being smaller, my underwear still fit surprisingly well around my pelvis.

  Curiously exploring my body with my hands, everything felt soft and springy. Si-hyun's assessment was right - soft and bouncy. Especially my chest, which was even softer than expected.

  After briefly enjoying my new body, I pulled on a hoodie and shorts before heading to the kitchen. Mom was cooking while my brother set the table.

  "Where's Dad?"

  "He said he'd be late?"

  "Why are you answering with a question?"

  I sat at the table waiting for dinner. Not that I could help since everything was already prepared... The three of us ate in silence. Or maybe our family just always ate quietly?

  As I finished eating and prepared to return to my room, Mom suddenly spoke:

  "Si-yeon, remember to visit the department store tomorrow before your Awakened registration."

  Department store?

  "Why suddenly?"

  "Are you stupid?"

  My brother snapped at me.

  "You've become a girl. Don't you need to buy new clothes and underwear?"

  Ah! I hadn't considered that at all. But did I really have to wear women's clothing? Couldn't I just wear whatever was at home? Only realizing this now showed how dense I was being.

  "Uh... okay, got it."

  I agreed for now. Back in my room, I started feeling anxious - did I really have to wear women's clothes?

  Though my body was indeed female... I tugged at my shorts to confirm, and yes, my male parts were gone.

  Now I'm a woman... FUCK!!! As someone who used to be a man, do I have to wear women's clothing now?

  Just then, the door opened and Mom entered.

  "Si-yeon?"

  "Mom?"

  Unsure why she came in, I watched as she sat beside me.

  "My son... should I call you daughter now?"

  "Yeah... I guess?"

  "It must be confusing, suddenly becoming a girl."

  No shit.

  "Since you'll be living as a woman, you need to understand women's matters."

  Sigh... Time to face the issue I'd been avoiding. Men and women really are different.

  What followed was Mom's hour-long "informal lecture" about essential women's knowledge and how to handle various situations.