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Chapter 16

Little sister personality

*Web Novel chapter below*

How to Invest in Index Funds: A Beginner’s Guide to Effortless Wealth-Building

Investing can feel like a maze of confusing options and risky bets—especially if you’re just starting out. But there’s one strategy that cuts through the noise with its simplicity, low cost, and proven results: index fund investing. If you’re searching for a beginner-friendly way to grow your wealth over time, index funds are your golden ticket. In this guide, we’ll explain what index funds are, why they’re perfect for beginners, and how to get started today—complete with trusted platforms where you can sign up. By the end, you’ll have a clear, actionable path to launch your investment journey.

What Are Index Funds?

Imagine owning a small piece of the entire stock market without having to pick individual stocks. That’s the magic of an index fund. It’s a type of mutual fund or exchange-traded fund (ETF) that mirrors a specific market index, like the S&P 500 or the Dow Jones Industrial Average. Instead of betting on one company, you’re investing in hundreds—like Apple, Microsoft, and Amazon—all at once. It’s less about chasing winners and more about riding the market’s natural growth.

Why Index Funds Are Perfect for Beginners

Index funds are the go-to choice for new investors, and here’s why:

  • Instant Diversification: One fund spreads your money across hundreds of companies, so a single stock’s stumble won’t derail your progress.
  • Low Fees: No need for expensive stock-picking experts—index funds keep costs down.
  • Set It and Forget It: No market expertise needed. Just invest and let time do the heavy lifting.
  • Proven Track Record: Studies show index funds often outperform actively managed funds, making them a reliable path to long-term wealth.

How to Start Investing in Index Funds: A 3-Step Guide

Ready to take control of your financial future? Follow these simple steps to begin your index fund journey.

Step 1: Choose a Brokerage Account

A brokerage account is your gateway to buying index funds. Think of it as your investment dashboard. Here are three top platforms perfect for beginners:

Pro Tip: Look for platforms with low fees, a variety of funds, and an easy-to-use interface. Most let you start with as little as $1!

Step 2: Pick the Right Index Fund

Once your account is set up, choose a fund that matches your goals:

  • S&P 500 Index Funds: Tracks the 500 largest U.S. companies (e.g., Vanguard’s VOO). Perfect for broad market exposure.
  • Total Stock Market Index Funds: Includes small, mid, and large-cap stocks (e.g., Schwab’s SWTSX). Maximum diversification.
  • International Index Funds: Invests globally (e.g., Fidelity’s FZILX). Adds worldwide balance.

Newbie Hack: Start with an S&P 500 or total market fund for simplicity and growth potential.

Step 3: Make Your First Investment

Now, it’s time to put your money to work:

  • Fund Your Account: Transfer as little as $1–$100 to get started.
  • Buy Your Fund: Search for your chosen fund (e.g., VOO at Vanguard) and hit “buy.”
  • Automate It: Set up automatic investments—like $50 a month—to grow your wealth effortlessly.

Quick Links:

Why Index Funds Are a Smart Choice

  • Lower Risk: Diversification cushions you from single-stock disasters.
  • Tax-Friendly: Fewer trades mean fewer taxable events.
  • Long-Term Gains: With the market’s historical 7–10% annual return, index funds are a retirement-building powerhouse.

Risks to Keep in Mind

No investment is bulletproof. Here’s what to watch:

  • Market Swings: When the market dips, so does your fund. But history shows it bounces back.
  • No Big Wins: You won’t beat the market—but for most, matching it is a win.

Tips for Index Fund Success

  • Invest Regularly: Use dollar-cost averaging to smooth out market highs and lows.
  • Diversify Further: Add international or bond funds as your portfolio grows.
  • Stay the Course: Don’t panic-sell during downturns. Long-term investors win by holding steady.

Real-Life Success Story: Sarah’s $240,000 Nest Egg

Meet Sarah, a 30-year-old teacher who invested $200 a month in an S&P 500 index fund. After 30 years, her $72,000 in contributions ballooned to over $240,000—thanks to the market’s average 7% return. No stock-picking, no stress—just consistent investing through platforms like Fidelity or Vanguard.

Start Your Investment Journey Today

Index funds are your beginner-friendly path to low-cost, reliable wealth-building. Sign up with a trusted brokerage like Vanguard, Fidelity, or Charles Schwab, pick a fund, and start with as little as $50 a month. The sooner you begin, the more time your money has to grow. Take that first step now—your future self will thank you!



In order to save the villainous twin sisters from falling into darkness, the mob character worked hard, and as a result, ended up being doted on by both of them.

“Touko-chan, shall we have lunch?”

“Huh?”

When lunchtime arrived, Saki Soyoka called out to us. 

In her hands, she was holding two lunchboxes with a light pink pattern. 

It seems my younger sister, Saki, can handle all sorts of household chores. 

It looks like the Futami sisters decided to have bento for lunch today.

“Oh, I see. Then I’ll head to the cafeteria.”

In the original story, I already knew that the two sisters always ate bento together for lunch. 

Yesterday was an exception when the Futami sisters adjusted to me, but starting today, it seems they’re back to their usual routine. 

Got it. If that’s the case, I understand. 

I don’t want to intrude on their time together.

“No, no, Touko-chan, you’re eating with us!”

“…Huh?”

As I started to stand up, Saki pressed down on my shoulder. 

It seems she meant for me to stay seated.

“This one’s for you, Touko-chan!”

A lunchbox was placed on my desk. 

Wait, this is supposed to be mine…?

“Here, let’s eat!”

Then, Saki pulled up an empty chair and sat across from me. 

Th-this situation…

“Did you, Saki, make this for me?”

“Haha, it’s not a big deal! I make one for Saki-chan too, so it’s just one more portion.”

She says it so casually, but I can easily imagine how much effort it must take. 

I mean, she’d have to prepare extra ingredients too, right?

“I-I feel so bad…”

“It’s fine! This much is nothing.”

“Then at least let me pay for the ingredients…”

There’s nothing harder to accept than unconditional kindness. 

I reached for my wallet.

“No, no, it’s okay! I’m not taking any money.”

“But I can’t just accept it for free…”

“I did it because I wanted to, so you don’t have to worry about it.”

Saki said this with a smile. 

Is it really okay for me to accept this as her genuine kindness…?

“Oh, hey, Saki! Why’d you go ahead without me?”

Just then, Saki appeared, catching up to us. 

She placed a light blue lunchbox on my desk and pulled up a nearby chair, plopping down heavily. 

A triangle had now formed around my desk.

“Wait, is this… what popular kids do?”

Eating bento with friends at the same desk? That’s not a scene suited for a background character like me. 

And on top of that, it’s with the gorgeous Futami twins. 

Their refined features and clear, sparkling eyes were dazzling.

“And they’re gathering around *my* seat…”

They(deliberately) gathered around me. 

They probably considered my leg, and that transparent kindness warmed my heart.

“It’s just that the window spot is a good position!”

“The backmost seat is nice because you don’t have to worry about people around you.”

The Futami sisters said this casually, trying to make sure I didn’t feel awkward.

“More importantly, eat already, Touko-chan!”

“Oh, uh, yeah!”

Urged by Saki, I opened the lunchbox. 

When I saw the colorful food inside…

“It looks delicious.”

The honest words slipped out of my mouth. 

Rice, hamburger patty, rolled omelet, asparagus wrapped in bacon, and a mini tomato salad. 

It’s a classic lineup, sure, but you could tell at a glance that everything was handmade. 

It had that special shine of food prepared with care—something you can’t get from a microwave.

“Go ahead, dig in!”

With Saki’s permission, I picked up the hamburger patty first. 

The moment it hit my mouth, the sweetness of the ground meat mingled with the savory sauce. 

Even though it had cooled, the rich flavor and soft texture made it impossible to tell.

“It’s… delicious…”

Both the look and the taste were flawless.

“Haha, I’m so happy!”

Saki’s face lit up brightly. 

Everything else was top-notch too, and I could see why they wouldn’t bother going to the school store with food like this.

“But isn’t it tough to prepare this every day?”

“You get used to it, somehow.”

“Is that how it works…?”

Still, for someone as refined as her, you’d think a personal chef would make her bento or something. 

Even if she didn’t cook, she could easily solve it with money. 

So, doing it herself—maybe that’s the whimsical charm of a rich girl? 

My imagination started running wild.

“Saki’s good at cooking, that’s for sure—*cooking*, specifically.”

Suddenly, Saki raised her voice, emphasizing “cooking.” 

What’s with her all of a sudden?

“Saki-chan hates even holding a knife.”

“…Wait, is Saki clumsy or something?”

From what I saw this morning, she didn’t seem like the type to take the lead with chores. 

Maybe she’s bad at delicate tasks.

“N-No, I could do it if I wanted to! I just let Saki handle it because she does it anyway!”

Her words were awfully shaky. 

It was obvious she was putting up a front. 

Perhaps sensing my skeptical gaze, Saki’s lips started trembling nervously.

“What? If you doubt me that much, should I make a bento for you tomorrow!?”

“No, it’s fine.”

“Why’d you answer so fast!?”

I don’t know why, but even as a fan of the Futami sisters, I reflexively turned her down. 

Maybe it’s because her desperation to cover it up made me imagine a less-than-pleasant outcome.

“Haha… I’d be a little worried too. If Saki-chan cooked, I’d be concerned about injuries or messes…”

Saki, unusually, gave her sister a wry smile. 

It seems she didn’t stray from the classic trope after all.

“What? What!? Is it that great to be praised for cooking, and that bad to be looked down on for not doing it!?”

Saki started getting hysterical. 

Their dynamic probably isn’t new, so why was she getting so emotional?

“It’s okay, Saki. I’m the type who finds a clumsy older sister cute.”

“That doesn’t make me happy! It doesn’t make me happy at all!”

Saki was fuming.

“Well, well, she’s a talented little sister. Just praise her honestly.”

“…That’s true, but…”

In any case, Saki was frustrated. 

As an older sister, maybe she has a complex about being surpassed by her younger sibling in something she can’t do? 

I’m an only child, so I don’t really get sibling dynamics, but I’ve heard pride can play a role.

“Ahaha… I don’t know how to react when I get praised so much.”

Saki’s side ponytail swayed as she blushed shyly. 

Always a step behind Saki, she might not be used to being in the spotlight. 

That shyness was adorable in its own way.

“…Hm? Fish?”

As I ate, I found a piece of grilled fish hidden among the side dishes. 

I was impressed by how well-balanced this bento was—nutrition clearly considered.

“It’s shishamo. This is a first, right? Saki grilling it and putting it in a bento.”

True enough. 

Shishamo isn’t a common bento side dish. 

Even Saki tilted her head, so maybe it was a whim of Chef Saki today.

“Yeah, shishamo has a lot of calcium among fish.”

“…And?”

Saki seemed to silently ask, “And that’s why it’s your first bento pick?”

“You know, so Touko-chan’s leg can heal faster.”

““…!?””

Saki and I were speechless at the same time. 

To think she’d consider my condition that much…! 

The sunlight streaming through the window framed Saki’s smile like a halo, making her look like an angel.

“…Well, I lost.”

Saki muttered something to herself. 

I’m not sure what she meant, but it seemed different from my own reaction.

In order to save the villainous twin sisters from falling into darkness, the mob character worked hard, and as a result, ended up being doted on by both of them.

In order to save the villainous twin sisters from falling into darkness, the mob character worked hard, and as a result, ended up being doted on by both of them.

双子姉妹の悪役令嬢を闇落ちから救うためにモブが奮闘した結果、二人から溺愛されてしまいました。
Score 10
Status: Ongoing Type: Author: Released: 2025 Native Language: Japanese
Shirahane Tōko, a background character, remembers that this world is from a yuri game after being reincarnated. Specifically, it’s the world of *KanoHana*—officially known as *"She Doesn't Yet Know the Pure White Flower."* Right before her eyes, she sees the twin sisters and villainous young ladies, Futami Saki and Futami Soyoka, standing on a bridge, peering down at the river below, moments away from jumping off. The Futami twins were about to fall into darkness and disappear from the story entirely. However, Shirahane Tōko could not allow that to happen. In her efforts to save them, she gave it her all—and as a result, the twin sisters ended up doting on her. But lurking in the shadows was an ominous presence...

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