I Became the Regretful Male Lead's Sister (Completed Main Story) - Chapter 2
If I had to name a man who suited the gentle Teresa better, I couldn’t help but think of Nathaniel Sinestra, the crown prince and supporting character from the original story.
He, who had inherited thickly the blood of the dragon from the empire’s founding myth, was the complete opposite of Maximilian.
Unlike the male lead, who was kind to everyone but cold only to Teresa, Nathaniel was gentle solely to Teresa and curt to everyone else.
His tender sincerity, directed exclusively toward Teresa, made him even more perfect.
‘Indeed, if I’m going to change the male lead, it has to be this guy.’
I’d already handed him the imaginary necklace of approval in my heart, but Teresa’s opinion was still the most important.
Asking Teresa’s opinion wasn’t difficult.
After I helped Teresa that day, we grew noticeably closer.
To be precise, I had simply started accepting the kindness Teresa had always shown me.
‘Though she was originally quite fickle by nature.’
In the original story, Jaina was a typical noble young lady.
Proud, prickly, and frequently moody.
The maids seemed to think that this very Jaina was now deeply absorbed in playing hero.
‘My image has really hit rock bottom.’
But thanks to that, I was quickly forgotten in the maids’ memories, who had initially found me strange.
A few days later, I summoned Teresa under the pretense that I had no one to accompany me on an outing.
Anyone else would have refused outright, but Teresa, being far too kind-hearted, readily agreed to come along.
“Oh my, this place is so beautiful! How did you know about it?”
“It’s a tea room run by our family—hasn’t Brother ever brought you here?”
At my words, Teresa smiled bashfully and offered an excuse.
“Max is just so busy.”
I had plenty to say, but decided against it.
After all, I knew well that Maximilian was the center of Teresa’s life.
I ordered the tea room’s specialty, hibiscus iced tea.
Teresa’s eyes sparkled—apparently, she really liked the iced tea on her first try.
“Try this too.”
I also pushed the accompanying egg tart toward her.
Watching Teresa repeatedly exclaim how delicious it was and thank me for bringing her here made me feel strangely uneasy.
‘Why did she fall for such a guy…?’
Hiding my pity, I casually brought up the question I’d wanted to ask.
“Do you happen to know His Highness Crown Prince Nathaniel?”
Surprised by the sudden mention of his name, she shook her head.
“I’ve heard a bit from friends, but I don’t really participate in society events.”
“Oh…”
Because of her engagement arranged even before birth, Teresa never had reason to enter high society.
How had she met Nathaniel in the original story again?
“But why are you suddenly asking about His Highness?”
“Oh, well… I’m about the age to be engaged soon myself, so I thought I’d gather some information.”
“Oh my! I never expected you’d be interested in His Highness. Then again, seeing Max’s face every day probably makes most men seem dull by comparison.”
Teresa mistakenly assumed I was interested in Nathaniel and told me every rumor she knew.
Her sparkling eyes made it seem as if she herself were interested in him.
“You know more than I expected, sister.”
“He’s not as handsome as Max, but His Highness is truly very good-looking.”
At this point, I started worrying Teresa might actually be a hopeless fangirl.
‘Surely not. It can’t be.’
No matter how handsome Maximilian was, acting that way would cool even a thousand-year love.
“Why do you like our brother so much? Even I think he behaves terribly…”
Teresa looked momentarily flustered at my words, then fell silent for a while before speaking.
“My lady, Max is actually kind—he’s just extremely shy.”
Huh? Who?
Trending
Who’s being called kind?
“He always says he wants to treat me well but can’t, and feels sorry about it. I believe Max will overcome his shyness someday.”
No, by then it’ll already be too late.
Could our heroine really be this naively kind?
After all, even in the original, she only considered leaving after Maximilian confessed he was wavering toward the imperial princess.
“Sister, he’s my family, but please don’t trust our brother too much.”
“Oh dear, why are you like this too, my lady?”
Beneath the afternoon sun, Teresa’s radiant smile looked genuinely happy.
She was so happy just from loving someone.
‘First, I need to help Teresa come to her senses.’
Peeling off those tightly sealed blinders was the priority.
As soon as I returned, I called a maid to ask about Maximilian’s whereabouts.
“Where’s my brother?”
“He came in a moment ago. He’s waiting for you in the second-floor study.”
Following the maid’s words, I changed clothes and headed to the study, filled with antique decorations and old books.
“You called for me?”
“Ah yes. About what happened at that tea party.”
Maximilian handed me a document envelope. Inside was a thin report—and, predictably, evidence that someone had sent money to the maid and head maid who’d served the tea.
“So they’ve been deliberately tormenting Teresa to humiliate her.”
Maximilian ran a hand over his face, looking troubled.
I kept flipping through the report. It wasn’t just one family—it was packed with evidence of commissions from every sort of house, from the tiniest noble families all the way up to the imperial court.
They gave various reasons, but their goal was singular.
They wanted Teresa to be the one to call off the engagement.
They knew this engagement was being maintained solely by Teresa’s desire.
If she couldn’t bear the humiliation and broke it off, the position of Duchess Winters would become vacant.
It was the doing of families vying for that seat.
“How dare they do this right under my nose.”
I was speechless at Maximilian’s words. It was entirely his fault that Teresa’s status had fallen so low they’d dare such schemes.
“It’s not surprising at all. Everyone knows your relationship with Sister Teresa isn’t good.”
My words came out coldly. Maximilian furrowed his brow and asked me,
“Are you saying this is my fault, Jaina?”
“Then is it Sister Teresa’s fault for coming to our house and drinking tea?”
“If something like this happened, you should’ve told me!”
“Oh…”
This was truly unimaginable trash behavior.
Maximilian fell silent, perhaps reading the contempt in my eyes. Why was he so harsh only to Teresa?
I asked the question I’d wondered about all through reading the original.
“Don’t you think this wouldn’t have happened if you’d just treated her well?”
“What have I ever done wrong to Teresa?”
Ah, so he’s just an idiot.
I ticked off his faults one by one.
“You never treat your promises to Sister Teresa as important.”
“That’s because Teresa said it was fine.”
“And you’ve never once granted any of her requests.”
“I just forgot because I was busy—it wasn’t on purpose.”
“Have you ever given her birthday or anniversary gifts?”
“Teresa takes care of those—why should I?”
To Maximilian, making such absurd excuses, I drove in the final, dagger-like blow.
“Then why do you take care of all the other women?”
“Th-that’s…”
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Fine, let’s say it doesn’t matter that he doesn’t care—but neglecting his fiancée while doting so attentively on others was the real problem, wasn’t it?
“They’re all people I need for work—that’s all. There’s no ulterior motive.”
“Then it’s clear: Sister Teresa is treated worse than even the people you need for work.”
Maximilian clamped his mouth shut, apparently having no reply to my accusation. Seeing him furrow his brow and bite his lip, I could tell he was anxious.
Whenever he made that expression, Teresa would always apologize to him.
But I wasn’t Teresa.
“This is our affair. Since when did you start caring so much about Teresa to make such a fuss?”
“The family’s in chaos because you don’t care—so someone has to, and that’s me.”
He ultimately deflected, insisting it was just between the two of them. What exactly was wrong with him?
Though it had only been a few weeks since my transmigration, Maximilian turned out to be a far better person than I’d imagined.
His attitude toward servants and his behavior toward me showed deep-rooted thoughtfulness.
He was so considerate it almost made me suspicious he harbored feelings for the other person.
Yet he was different with Teresa alone. Was he just too familiar, like someone full who no longer appreciates food?
My head ached too much to think anymore.
“Treat her well while you still can, Brother—don’t regret it later.”
I snapped at him and walked out of the study.
He chased after me in confusion, but I quickly slipped into my room.
Maybe Maximilian was right.
Perhaps I was over-investing. Even in my past life, I’d been told I meddled too much.
But I still vividly remembered how I felt when I first read the original.
How heartbroken I was seeing Teresa, whom I’d cheered for, die pointlessly, with nothing resolved at the story’s end.
‘As long as I’m here, that won’t happen.’
I stood up once more, steeling my resolve.
I strained every memory from the original story and Jaina’s own recollections to find a connection with Nathaniel.
‘Still, as a noble lady, I must have at least a slight link to the crown prince.’
Checking the invitations I’d received, I searched for an event where I might meet him.
Among them was an invitation to Lady Cassian of House Velicia’s birthday ball.
House Velicia was the family into which the emperor’s sister had married.
Thus, members of the imperial family always attended balls hosted by the Velicias.
In the original, crowds had gathered to this very ball just on rumors of Nathaniel’s attendance.
‘Though Teresa herself had no real interest in the crown prince.’
Moreover, Lady Cassian of House Velicia and Teresa were inseparable friends.
Even if I failed to build rapport with the crown prince this time, getting acquainted with Lady Cassian would surely help.
I immediately began drafting a reply accepting the invitation.
It might turn out to be a perfect opportunity to bring the two of them together.
“What if the crown prince falls for Teresa at first sight?”
At that thought, my pen moved faster.
For some reason, my heart felt lighter.
I decided to attend the ball alone. There, I’d meet Teresa and be introduced to Lady Cassian.
As soon as I entered the ballroom, people stared at me strangely for being unaccompanied.
‘Teresa must have experienced this every time.’
In the original, Maximilian had never accompanied Teresa to social gatherings.
The more I thought about it, the more infuriating it became.
“My lady!”
Teresa waved from not far away.
She was dressed neatly, but true to her nature, her attire was simple.
‘Next time, I should pay more attention to clothing.’
Thinking this, I quickly made my way to Teresa’s side.
“Cassian, this is Lady Jaina Winters.”
“Pleased to meet you, Lady Winters.”
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Cassian, her black hair tinged with blue pulled up neatly and wearing a cream-colored dress, openly scrutinized me.
Her slightly upturned eyes made her gaze feel even sharper. She clearly didn’t hold any goodwill toward me.
And understandably so—before my transmigration, more than half of Teresa’s tears had been because of me.
“Pleased to meet you, Lady Velicia.”
Regardless of Cassian’s dislike, I felt fond of her.
After all, she was one of the few characters in the original who delivered satisfying comeuppance.
Despite her frosty demeanor, I stuck close to the two of them.
Seeing me, who had always coldly treated Teresa, now chatting warmly with her, the onlookers’ gazes shifted slightly.
Cassian’s expression softened a little as well.
“There were absurd rumors going around that you two got along—so it’s true, then.”
“We had some minor misunderstandings before, but everything’s cleared up now. Honestly, I don’t know what I’d do without Sister Teresa.”
I deliberately spoke in an exaggeratedly loud voice. Nobles nearby glanced our way with faces full of curiosity.
Everyone seemed eager to know whether the rumors were true or false.
Cassian, apparently catching on to my intent, changed her expression and began treating me kindly. We laughed and chatted as if we were close friends reuniting after three years.
Teresa, too, looked happy—likely because she was finally relaxing and enjoying herself in a comfortable setting after so long.
“Oh! Right—my lady, they said His Highness the Crown Prince is coming today.”
“Oh?”
I was greatly flustered when Teresa suddenly brought up Nathaniel first.
If she said it like that, people might think I was only pretending to be close to Teresa for the crown prince’s sake.
I rolled my eyes toward Cassian—her expression seemed to say, “Of course, just as I thought.”
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Male lead is reincarnated to save his wife
I’ve also read this one twice already. The female lead is kinda soft and gets embarrassed easily—not really my type, but the plot is definitely worth reading. Hurry up and read it, y’all!

Intro
When Shen Yuan encountered Su Jin again in his previous life, she had already become the Prime Minister of the current dynasty. As for him, the former top young master of the capital, he had long since fallen into the abyss, becoming a singer on a pleasure boat.
After a song ended, he was redeemed and sent to the Su Residence.
Su Jin respected and cherished him, gave him a roof over his head, and bestowed him with warmth. Shen Yuan fell deeper and deeper, but before he could express his feelings, Su Jin passed away.
Shen Yuan died to follow her in death, but instead, he returned to when he was fifteen years old.
At that time, he was not yet engaged, and Su Jin was just a poor scholar.
Shen Yuan gritted his teeth, casting aside all his pride, and thought of ways to coax and entice her every day.
The colder and more indifferent Su Jin was towards him, the more proactive Shen Yuan became.
He was not afraid of being mocked by the world, only wanting to marry his Wife-master early, to hold her hand and never let go for a lifetime.
[Note: This story will not specifically point out the male lead’s reincarnation time point; it’s all in the details. Whenever you feel that the male lead is acting strangely, he has most likely been reincarnated.]
[Touch the gear icon in the bottom right corner of the screen to move to the next chapter if you want.]
MANGA DISCUSSION
1 Comment
Chapter Comments (20)
agustus_orchid Chapter 5Teresa, with your beauty and intelligence, you can find someone better than Max. Make Max regret it. I support you (≧▽≦)
agustus_orchid Chapter 5Teresa, the place for garbage is the trash can. Don’t upset yourself over a man who doesn’t love you or value you.
agustus_orchid Chapter 5max, don’t use your head as an ornament.
be a little ashamed.
Inline Comments (41)
- Nobodynobodyma Chapter 10 — Paragraph 137
"Anyone seeing him might think your brother's being sold off."
Lolll their father is so good. Omg I laughed a lot 😂
- Nobodynobodyma Chapter 12 — Paragraph 189
He decided to wake her gently, feed her something delicious, and then talk—so he
Shit bro. We are really fucked up loll😂 why did he turned to human
- Nobodynobodyma Chapter 19 — Paragraph 123
From now on, my life motto would be: be a cunning flatterer!
Loll cunning flatterer. She is so funny omg. I love them actually
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Articularflower
Thankgod Teresa isn’t the fl she’s so stupid 😭 😭