After Swapping Systems With the World's Number One

[You have successfully reached max level.

You are about to challenge the final boss.

Now, defeat the SSS-rank boss, the Demon Venerable.]

You, who just entered Qi Refining at LV1: Yikes.

You and the System both realize you've been bound to the wrong person.

The System adds:

[Quest reward: A contract that lets you command demonic cultivators below S-rank.]

You: Yikes.

After reaching max level, the Sword Venerable hears the System's notification.

[You have just joined the sect.

You can already wield a sword.

Now, defeat the senior brother next door who is about to put you in your place (LV1).]

[Quest reward: A fragment of the Sword Venerable's notes.]

Sword Venerable: ...?

After meeting, you think you and the Sword Venerable have swapped Systems.

The Sword Venerable helps you face-slap your enemies.

You help the Sword Venerable defeat the Demon Lord.

The Sword Venerable swears to help you take the throne, become the leader of the righteous path, and reach LV99.

But one day, you hear: [Quest complete: Defeat the SSS-rank boss, the Demon Venerable.]

News of the Demon Venerable's defeat spreads.

The righteous sects are all in a panic, trying to find out who the new world-ending demon is, when the new Demon Venerable shows up at your door.

The Demon Venerable asks coldly, "When are you going to defeat that Sword Venerable who bullied you?"

Only then do you realize:

It wasn't just one person who got your System.

Anyone who becomes the strongest in the world swaps Systems with you.

The main story is in third person.

I might also write an infinite-flow version.

[You have successfully reached max level.

You are about to challenge the final boss.

Now, defeat the dungeon's SSS-rank boss, the Evil God.]

You, who just entered the dungeon at LV1: Yikes.

You and the System both realize you've been bound to the wrong person.

The System quietly changes its tune.

[You have just entered an infinite-flow world and can already see ghosts.

Now, attack the dungeon's SSS-rank boss, the Evil God.]

[Quest reward: A contract that lets you command ghosts below SSS-rank.]

You: Yikes.

Meanwhile, the max-level Evil God.

[You have just entered an infinite-flow world.

Now, defeat the ghost in the mirror who is about to scare you (LV1).]

2025.3.27

Theme: Don't work hard on someone else's behalf.