The Villainous Senior Brother Doesn't Want to Become the Heroine's Experience Farm

Question: How can the villainous senior brother from the first three volumes of a yuri harem novel save himself after transmigrating?

Answer: Avoid the demonic seed, improve your cultivation, use the protagonist's harem members as shields and protectors, and push the protagonist to grow quickly enough to defeat the demonic seed.

If that still doesn't work, go on dates with the protagonist and make her blush. Steal away her harem and completely subvert the very essence of the yuri plot, making the girls fall for you sincerely and find a way to keep you alive.

Then, with all kinds of auras and buffs on your side, the demonic seed won't be coming back!!!