I Became a Supporting Male Character, and the Protagonists Fell for Me

[A transmigrator into a book playing a minor role X a brash yet devoted junior apprentice]

Du Lanxing transmigrates into a master-disciple romance novel as the supporting character, the second senior apprentice brother.

To complete his mission and return to the real world as soon as possible, he has to follow the System's instructions, help the novel's two male leads go through their angsty, melodramatic master-disciple romance, and make sure they get a happy ending.

After weighing the difficulty of the mission, Du Lanxing decides it's manageable.

He's just a walk-on character, after all. He can casually nudge the plot along while watching the drama unfold. How hard can it be?

So when the apprentice is punished by his master and sits alone in sorrow, Du Lanxing quickly steps in to comfort him. “Hey, Junior Brother, don't be too upset. Master did this for your own good. You should understand his good intentions!”

When the master is locked in a dark room and tortured by his demonized apprentice, leaving him utterly disheartened, Du Lanxing says, “Junior Brother went a little too far, sure, but he turned dark for love. Please try to understand him, Master!”

When the misunderstanding between the two male leads is cleared up and they're about to reach their happy ending, Du Lanxing lets out a sigh of relief, finally wearing a knowing smile.

But before the smile can fade, one of the male leads suddenly bursts into the room and backs him into a corner.

His junior apprentice brother, Mo Yichen, looks at him with sincere eyes. “Second Senior Brother, come back with me to the Demon Capital. I promise I'll love only you for the rest of my life!”

Du Lanxing's mind goes blank. “??”