Give the Shonen Manga Hero a Shock with a Straightforward Puppy

God said, "Let there be love."

So Linlin, who died young, was loaded with the [Romance Conquest System].

If she successfully completes the conquests, she can return to the world of the living with 1 billion dollars and reach the peak of her life!

Linlin, who was incredibly popular in life: Isn't this a piece of cake?

[Please conquer all three targets at the same time.]

Linlin: I'm not that immoral

[Adding another 1 billion dollars.]

Linlin: Money doesn't matter. I just really love romance!

And so she begins conquest mode on hard difficulty:

Today, the fragile new neighbor. Tomorrow, the impoverished transfer student. The day after, the long-lost big sister who understands her better than anyone.

The process gets a little complicated. Neighbor A-Dream sees through her secret identity at first sight; her glamorous seatmate has the aura of a king; her childhood friend has evolved into the ultimate B-King...

But that's no problem!

Thanks to her Oscar-worthy acting skills (allegedly), Linlin finally gets to hear their confessions.

Pink-haired neighbor: "You're a real pain, but you're special to me."

Glamorous seatmate: "Ah, yes. Surrender to this great one's charms."

Little brother and childhood friend: "I couldn't do that with anyone but you..."

Linlin: "Okay, girls, this is practically in the bag... right?"

She looks at the identical [33%] above all three of their heads and falls silent.

Does this make sense? How does this make sense?!

Who has a mere 33% affection when they confess?!

Linlin, furious: "Useless System! Give me back my two billion!!"

[Bonus scene]

One day, all three happen to meet.

Atobe: "Big sister who understands you?"

Echizen: "Impoverished transfer student?"

Linlin: "...If I said I'm Linlin's long-lost sister, with different parents, would you believe me?"

The two: "What do you think?"

Saiki: "Good grief, I told you this wouldn't work."

Linlin: "Saiki-senpai, help me!!"

Atobe & Echizen: "..."

Shock! My love rivals were right beside me all along!

*Third-person narration. Interpret the characters however you like.

*Affection levels are split evenly (not really).

*Wish-fulfillment novel, ALL pairings.

*Trying to keep everyone happy, but failing.

*Breaks up the canon pairings of Toya and Teruhashi (to be supplemented).

*She's a carefree little Westie!

*It's supposed to be one girl with three love interests, but there are plenty of other bonus characters.

*May involve unintentionally feminized male characters... (I'm bad at describing appearances.)

Theme: Money is precious, but true love is worth more