Shocking! The Side Character and the Protagonist Got Their Happy Ending!

If the protagonist is the pillar that holds the world together,

then passersby are the most insignificant people of all.

They shouldn't have anything to do with each other. But one day, a System fell from the sky, binding itself to a passerby who was happily making his way through the world, and told him:

The protagonist has gone off the rails. To protect the world's justice and peace, passerby, it's your turn to set things right!

Passerby: What does that have to do with me?

World One: Wealthy Family Melodrama

Poor, tough college guy forced into prostitution x lonely, love-struck true heir to a wealthy family

The protagonist is the true heir to a wealthy family who was switched at birth. He grew up with too little to eat and wear, sensitive and starved for affection. After being reunited with his wealthy family, he isn't treated with respect. Instead, everyone looks down on him and despises him.

When the System transmigrates in, the fake heir is about to hire ten male escorts to ruin his reputation...

The System hurriedly selects Fu Rong, who's been forced into prostitution: "We can't let him fall. Otherwise, after tonight, he'll give up on everything and grow into a great demon who manipulates the stock market out of malice! He'll take all your money!"

With no other talents to speak of, Fu Rong shows off his eight-pack abs. "Then... want to book me?"

System: "?"

Protagonist: "...Slurp."

World Two: College Campus

Free-spirited motorcyclist x gloomy academic genius

The protagonist is a biology prodigy. His excellence makes him a target, and after being constantly harassed and persecuted, he ends up disgraced and dropping out in a pitiful state.

The System picks Lu Yang, a retired racer riding by on his motorcycle: "Stop him from dropping out! Otherwise, he'll develop a deadly virus and kill all your beans in the future!!"

The wind was too loud, and Lu Yang didn't catch what it said. He pulled over with a dramatic fishtail skid. "Huh? What virus? Who?"

"By the way, what just flew off?"

System: Aaaah!! My protagonist!!

World Three: Insectoid World

Carefree male insect who just wants to get by gong x scheming female insect shou

Because of his striking beauty, the protagonist is a commoner female insect whom a villainous suitor plots to hand over to the powerful.

When the System transmigrates in, the protagonist is already being packed up and taken away. The System hurriedly binds itself to Zhou Jibei in the next room: "Please save him! Otherwise, after tonight, he'll enter politics and throw the whole world into chaos!"

Zhou Jibei, who'd sneaked out of work to nap: Hehe, I was just wishing someone would take my shift.

System: ?

[Content warnings]

A self-indulgent work, told in separate arcs. Every world is 1v1, with both leads sexually inexperienced. For specific content warnings, see the first chapter of each arc. Feel free to come and go, but please refrain from personal attacks, thanks.

Theme: Keep trying to live