The Male Supporting Character's Self-Cultivation (Quick Transmigration)

[Warnings]: Mindless wish fulfillment, no logic, [especially the first world, which is more of an outline]. A sincere recommendation: start from the second world~ System: You're now a lowly male supporting character, an expendable passerby who could be written out at any moment. Keep your head down and quietly build yourself up. Shi Yan: Great, thanks for the advice. First world: Born in the cold palace as a little prince, Shi Yan kept his head down until he became emperor. Meanwhile, the original male and female leads, under his watch, ended up in a miserable marriage. Second world: As the innocent youngest son of the Princess's residence, who was doomed to die tragically, Shi Yan kept his head down until he became a powerful minister, second to none. Meanwhile, the original male and female leads, under his watch, ended up in a miserable marriage. Nth world: As a cultivation-world genius whose soul was destined to be scattered, Shi Yan kept his head down until he became the strongest in all three realms. Meanwhile, the original male and female leads, under his watch, ended up in a miserable marriage. The System felt that something was off. Shi Yan instead reassured him: Isn't it the self-cultivation of a supporting male character to make sure the leads end up together, no matter the circumstances? P.S. I don't like amicable breakups, and I don't need writing advice~~ My completed novel, "Listen to Me Explain (Quick Transmigration)," has no CP. Come give it a read~~ Question: How do you quickly and effectively break up and reassemble a stomach-churning old-school CP? Dao Wei: First, become the most important person in one half of the CP's life. Then whisper in their ear, over and over, until you get what you want! (1) Male lead: The female lead's father's power is so tempting. I'll reluctantly take the female lead into my harem and make her my woman, Long Batian! Dao Wei: You want to take my sister? Sis, listen to me... (2) Male lead: Huh, the female lead is so lame, and she even insists I pursue her. How unfair! Dao Wei: You want to pursue my childhood friend? Childhood friend, listen to me... (n) Female lead: Master killed his wife to prove the Dao! Dao Wei: You want to kill me? No need to say another word. Draw your blade! Core message: Be strong inside, and stay steady through wind and rain