Subtitle: Author’s Healing Time
Hello, everyone! This is your Q&A-obsessed author. For clarity and convenience, some questions have been grouped or condensed. Without further ado, let’s dive straight in!
First, starting with the most requested question…
Q. What are Hajun’s three sizes?
A. 97–76–94 in centimeters (38–30–37 in inches). These measurements were taken during his modeling shoot alongside Katy. Since his body with ease builds muscle whenever he works out, these numbers aren’t set in stone. (According to research, the ideal measurements for a male model are around 97–80–97.)
Regarding his weight, his minimum and maximum ranges stay well within a healthy BMI. (Several celebrities, models, and athletes were referenced while setting his weight!) In normal times, he sits in the mid-70s kg range. He slims down during promotion cycles if needed, and builds muscle off-season through intense physical activity.
As for his physique, he possesses a broad frame with great proportions and a lean waist. He lacks the thicker bulk of Ryu Cheongwoo, but his core muscles are dense and solid. His inner strength exceeds his outer appearance, so he does not look bulky on the surface.
Q. How does Hajun maintain his body while eating so little?
A. To TeSTAR, he looks like he might starve at any moment. For Ryu Cheongwoo in particular—who knows a thing or two about working out—it remains an absolute mystery. How can someone of that height, frame, and muscle mass survive on so little food?
Even to an ordinary observer, his food intake seems far too low. Yet his body stays in peak shape. There’s a specific reason for this, which sharp readers might guess! If not, the truth will come to light down the road.
Q. What was Hajun’s personality like before transmigration?
A. Several readers asked this question. Past or present, he remains the same. He used to be far less calm. To put it in perspective: if his current mindset is “The mountain is a mountain and water is water, but you’re crossing the line,” his old mindset was “Bury them in the mountain, drown them in the water.”
Q. What were his school days like? Any plans for a school days side story?
A. Yes! Given the chance, I’d love to show his student days through a side story or quick mentions in the main story.
As a side note, Hajun has set foot on a university campus a total of five times across all his lives: once in his first life, three times in middle lives, and once in the current timeline. Most of the time, transmigration dragged him back before he reached college age, and during a few loops, he chose not to attend.
He avoided skipping high school at a young age so he could attend alongside Katy. In his first life, he attended UCLA and faced transmigration right before at a young age graduation. During later loops, when given the chance to go to college, he chose UCLA again, then Princeton to stay far from home, then Harvard to avoid repeating past choices. In this current timeline, he enrolled at MIT before dropping out—convincing Alex to leave UCLA along the way—to launch his own business.
Q. What was his graduation thesis topic in his first life?
A. It focused on Artificial Intelligence.
Q. What is Hajun like when working at his company?
A. Before diving into that, let’s take a moment to introduce Alex. Alex comes from a family steeped in the legal field, and he was preparing to follow that exact path. Then Hajun snatched up this promising talent, dragged him into studying business, and put him to work.
Depone, the company they co-founded, falls under the IT sector. From the start, Hajun handled core development while Alex managed overall operations and external affairs. As the company grew, Alex became flooded with work, while Hajun spent his time dodging Alex—who kept trying to drag him back to work—or barging into the research labs whenever the mood struck. (Since Hajun’s secretary was terrified of him, Alex ended up acting as his half-time secretary too.)
Still, Hajun delivered incredible results whenever he in truth worked, so Alex preferred having him around rather than watching him vanish into thin air.
Q. What does Hajun wear to sleep? Does it match his personality?
A. At his family estate, he wore expensive silk pajamas prepared by the staff. He didn’t pack those for Korea, so he right now sleeps in plain t-shirts and shorts (from luxury brands, of course).
Q. Does his family home have any pets?
A. The main estate has three guard dogs, and his stepmother owns a cat. Hajun doesn’t care for any pets on his own.
Q. How do TeSTAR and Cheongryeo react to Hajun’s “young master” moments?
A. Among the members, Park Moondae and Lee Sejin show the most horror. The others find it awkward or new, but they’ve grown used to it. Whenever money enters the picture—like expensive items—everyone freezes except Seon Ahyun. (Though Ahyun’s turn to freeze will come in time…)
Cheongryeo couldn’t care less whether Hajun is a young master or not. If anything, he finds Hajun’s wild, wild behavior—despite his ability to put on a flawless formal front—savage.
Q. What went through Cheongryeo’s mind when he saw Hajun collecting his own fallen hair at the music show?
A. ………………..???
Q. If Hajun were the same age as Cheongryeo, would he have tried out for Idol Co-op?
A. Wouldn’t he get cut at the door due to the age limit? Furious at the rejection, he most likely would have founded his own entertainment agency instead.
Q. Is Ju Dan’s courtship still ongoing? What is their age gap?
A. Yes, it continues! Ju Dan contacted him often, but started pacing his messages on purpose to try the [seep in -> make him realize I seeped in] tactic. Hajun remains blind to it of the effort, feeling relieved that Ju Dan isn’t bugging him as much of late.
As for ages during TeSTAR’s debut year (based on my internal settings): Cheongryeo is 26, Shin Oh / Chae Yul (+Bihan) are 25, and Ju Dan is 24.
Q. Is there anything Hajun is bad at? What foods does he like?
A. Food fighting… He can’t handle massive volumes of food. He also doesn’t handle spicy food well. He can eat a little, but the members don’t know that yet. As for things he consumes well: alcohol and coffee.
Q. Does Hajun have any fears?
A. Being left alone. (Not in physical terms.)
Q. What if Hajun had learned about Cheongryeo’s existence earlier and met him sooner?
A. That would have been far better for both of them. Cheongryeo, recognizing Hajun’s talent, would have taken the risk to secure the main vocalist he so deeply wanted. Hajun, in turn, would have gained someone who would never forget him across time.
Beneath his sharp exterior, Hajun carries a unexpectedly warm heart. Even if they clashed at first, he would have opened up in time. He would have fought with everything he had to break Cheongryeo’s curse—the System—whether Cheongryeo wanted it or not.
Q. How did Hajun’s biological parents meet?
A. I wanted to write this even without a question, so I’m glad it came up!
How did a young woman in her at a young age twenties end up with a businessman in his late thirties? It stems from Hajun’s mother, Ahn Soyoung. Beneath her sharp looks, she was a complete wild spirit. Born into a shaman family, Soyoung refused that path. Rather than any grand philosophical reason, she just hated accepting a forced fate.
Fearing her mother (= Hajun’s maternal grandmother) would trap her in Korea, she flew to the United States in her at a young age twenties on a whim. (Hajun’s impulsive nature comes straight from her.) She lost her wallet and passport in an new place where she couldn’t speak the language.
Hajun’s father stepped outside for a quick smoke break during work and spotted Soyoung sobbing on the street, wailing in Korean. Seeing a young woman weeping so with tears—and recognizing a fellow Korean—he walked over to help. That was their first meeting. (Soyoung fell in love at first sight right then and there…)
Though they parted ways expecting never to meet again, chance encounters brought them together several times. Hajun’s father, who had lived a rational and structured life, felt a strong pull toward Soyoung’s free-spirited nature. It was the first and last impulsive act of his life.
Q. Did Hajun’s father love his mistress and Hajun?
A. Since this ties into the previous answer: love comes in many forms, so one could call it love… but toward Hajun, his sense of duty proved far stronger.
He helped Soyoung secure a small job in America, and when she became pregnant with Hajun, he advised her to get an abortion. (Soyoung refused after having a grand pregnancy dream, a taemong.) When both returned to Korea, he paid child support only through legal reps. He never contacted Hajun, nor did he visit in person.
When Hajun first arrived in America, the person who cared for him was his stepmother, not his father. His father showed little interest in Hajun until discovering his brilliant intellect and multifaceted talents. (As a reminder, Hajun already clashed with his father in this timeline by dropping out of MIT.)
Q. What were Randy and Hajun’s first impressions of each other?
A. Randy: Oooh, so that’s the rumored second young master. I wonder who gets assigned to him… Poor soul.
Hajun: A goldfish poop trailing behind David.
Randy served as David’s personal butler. Across his transmigrations, Hajun kept an eye on Randy and snatched him away. (^.^)
Q. Any at a young age stories with David? Does David care for his younger brother? Does Katy know about their rocky relationship?
A. There aren’t many specific episodes to share. David’s feelings toward Hajun stem from deep-seated wounds. When David was four, his parents fought terribly over his father’s affair, leaving him with memories of his mother weeping without end.
Until his younger sister was born two years later, David endured an troubled childhood. That wound ran deep. As he grew older, he learned the truth behind his father’s actions after stumbling upon a photo of Soyoung and baby Hajun in his father’s study. His pain turned to anger toward the mistress and her son.
David understands that Hajun bears no fault. Yet looking at Hajun, he sees eyes that mirror that woman, evoking complex emotions. It’s a love-hate bond. His half-brother is fun and cute in his own way, but those eyes still sting his old scars.
Katy, on the other hand, understands David’s heart. Born after her parents reconciled, she didn’t experience that trauma, but she recognizes that the second brother who feels like a surprise gift to her might not feel that way to others.
Q. Why did Hajun become an overprotective brother (siscon)?
A. Nobody asked this, so I asked myself!
Hajun’s maternal grandmother passed away from a cerebral infarction when he was three. Until age five, Hajun retained his childhood spiritual eyes and could see his grandmother’s spirit standing in the yard watching over him. He didn’t mind it much.
His mother was a wild spirit who didn’t offer stable parental support, and his father was… absent. Local kids avoided Hajun, calling him a shaman’s kid. Growing up in that environment, Katy became the first person in his life to offer pure, true affection.
Q. Which member would Hajun introduce to his sister? Which member would he date himself?
A. As long as Katy likes the guy, Hajun approves! They’re all good kids. If forced to choose, he’d recommend Ryu Cheongwoo or Cha Eugene. Eugene because their personalities click, and Cheongwoo… does that even need an explanation?
If asked who he’d choose for himself, he’d pick Seon Ahyun. His reasons:
- Possesses a pure, good soul.
- Has real courage.
- Doesn’t nag much. (Crucial!)
Q. What do the members think of Hajun? How high is his favorability?
A. Setting exact favorability numbers aside, here is the order:
**Members ➔ Hajun:**Ryu Cheongwoo > Cha Eugene > Kim Raebin = Seon Ahyun >= Keun Sejin >>>>> Park Moondae (Bae Sejin: ??)
**Hajun ➔ Members:**Ryu Cheongwoo >> Bae Sejin >= Cha Eugene > Seon Ahyun >= Kim Raebin = Keun Sejin > Park Moondae
Their mutual thoughts:
[TeSTAR ➔ Hajun]
- Ryu Cheongwoo: A friend who is unexpectedly cute and warm-hearted beneath his rough exterior.
- Bae Sejin: I really hate him! (Doesn’t in truth hate him that much)
- Park Moondae: Crazy guy + please just stay still.
- Seon Ahyun: Very talented, a bit scary… but in truth a good person.
- Keun Sejin: Strong personality, but gets his work done.
- Cha Eugene: Let’s perform together! So fun! He doesn’t eat! Really doesn’t eat!
- Kim Raebin: Talented. Speaks rough, but stays kind.
[Hajun ➔ TeSTAR]
- Ryu Cheongwoo: Really good guy.
- Bae Sejin: Small guy.
- Park Moondae: Funny guy.
- Keun Sejin: Good-natured guy.
- Seon Ahyun: Kind guy.
- Cha Eugene: Noisy guy.
- Kim Raebin: The biggest coward.
Q. What if Hajun were TeSTAR’s youngest member (maknae)?
A. That’s a tough one! Let’s split this into two scenarios:
Scenario 1: Same age as Eugene and Raebin.
Raebin would suffer terribly. Handling Cha Eugene already strains his neck, but adding Hajun to the mix would ruin the poor rabbit’s throat. At first, Raebin might fear Hajun before adapting and treating him at ease. A moment of silence for the baby rabbit from Gangwon-do stuck between two Americans.
Scenario 2: Youngest member overall.
This scenario gets chaotic. I had a reason for placing Hajun in the oldest line. Ryu Cheongwoo holds traditional Confucian values deep down. Imagine a leader clutching his neck over a wild youngest member who ignores seniority… Mind-dizzying already. The kind TeSTAR members would end up throwing their hands up in surrender.
Also, since Hajun would be under 18 in this scenario, his height would stay under 186 cm, making Keun Sejin the tallest member once again!
Q. If he went through divine initiation to become a shaman, how far could he go?
A. He would reach the rank of an Immortal (Seonin).
Q. How did he train his spiritual abilities? What is his strongest field (excluding physical exorcism)?
A. He by instinct realized that coating his fists with energy and punching ghosts works. That serves as his baseline, while various spells are treated as neat side tricks. His power carries incredible versatility.
Things like drawing talismans were picked up during childhood by watching over his mother’s shoulder and reading books around the shrine. He never went through formal training. Pure genius!
He mentioned that living in America was peaceful since he hardly saw ghosts there. The few he ran into were weak compared to Korean spirits, so he paid them no mind.
Excluding physical exorcism, his most confident area is… well, everything! But since he drew talismans most often, that remains his specialty. Versatile and practical.
Q. What was his biggest regret across all transmigrations?
A. Around his 5th to 7th transmigration, he regretted failing to kill his sister Katy’s scumbag ex-boyfriend. He beat the guy half to death in society and in person, but transmigration pulled him back before he could finish the job.
It brought regret, yet immense relief. For Katy in the current timeline, that incident never happened. As a side note, that scumbag never approached Katy again. While Hajun doesn’t often block his sister’s relationships, he now runs background checks on every boyfriend she dates. He does it in the open, so Katy knows, but she doesn’t complain—she adapted to her brother’s antics long ago.
Q. What made Hajun stronger through his transmigrations?
A. His ability to keep moving forward, believing, and taking action no matter what. Rather than something gained from transmigration, that stems from his innate nature.
Q. What is Hajun’s official animal image?
A. It varied between a tiger, crocodile, shark, and gorilla. However, after TeSTAR’s reality show revealed his pregnancy dream (taemong), his official animal image solidified as a Dragon.
Thank you so much for all the wonderful questions! I had a blast answering them. If I missed any questions, I apologize. Summarizing and reordering them got a bit confusing! I hope you enjoyed reading this long post. Have a wonderful day, everyone!
New Terms
- 안소영 – Ahn Soyoung (Hajun’s biological mother)
- 서바이버 – Survivor
- 선인 – Seonin / Immortal (A high-tier spiritual being/transcendent being in Korean shamanism)
