My Late Senior Brother Insists on a Teacher-Disciple Romance

[The model junior becomes a wicked, teasing beauty of a master, while the gentle senior turns into a scheming puppy, and the mysterious person's □□ boss turns out to be my frail apprentice?]

Synopsis: "Host, you and the Demon Venerable have been reborn into the wrong bodies." "Please transmigrate back and help the protagonist." "But don't take the antagonist as your apprentice!" "That kid killed the fake Immortal Venerable in his previous life!" "Wait, what? Why is the energy connected to the protagonist also connected to the antagonist?"

Ruan Yin used to be an orphan, but luckily his senior brother took him in. Later, his senior brother met with disaster. Who would have thought that years later, Ruan Yin would run into a System?

"Host, complete the mission and get information about someone from your past!"

Sure.

But then Ruan Yin turned around and took on an apprentice, the reborn version of that antagonist?

"Host!"

Ruan Yin: I need a servant.

He's completely confident and unapologetic, but he takes the protagonist in as well.

System: The protagonist is your senior brother.

Later: "Wait, Host, it looks like your apprentice is also your senior brother?"

Seme's perspective.

Nan Xi has been reincarnated. In his life before last, he was Ruan Yin's senior brother and had a crush on him for years. Later, he became Ruan Yin's apprentice and used the experience he'd gained in his previous life to pursue his master.

But Bai Heng is by his master's side.

One mountain cannot hold two tigers!

Nan Xi, fully aware of this, starts making his moves.

On the surface, he's still a rebellious little apprentice. In secret...

Master: "Who are you, really?"

With a mask on, he's no one's friend.

Ruan Yin: "We must know each other, right?"

Nan Xi: "We do, but you probably don't remember."

Bonus scene.

In the end, the master completes the mission and returns to the Demon Realm.

He looks at a certain person whose secret identity has been exposed, but who still has no idea.

Ruan Yin: I've been dreaming about my senior brother a lot lately.

Nan Xi: Perhaps your martial uncle misses you, Master.

Ruan Yin: I feel like that mysterious person seems familiar, too.

Nan Xi: Does he? Master, are you sure you're not overthinking it?

Ruan Yin: Never mind, little apprentice. Come to my wedding ceremony.

Nan Xi: Wh-what?!!! A wedding ceremony???

Ruan Yin continued: You don't know yet, do you? Actually, your senior brother is my martial uncle. I'm going to marry him.

What? Nan Xi: ????????

Coming soon: My Rival Ran Off While Pregnant?

One-line premise: My despised archenemy ran off with my baby? Good news: It's a rumor. Bad news: While checking if it's true, I got pregnant. Even worse, I thought I was just full.

Theme: Stay calm when things happen.