Transmigrating: I Married the Male Protagonist’s Uncle - Chapter 10: A Badass Male Supporting Character

He lived like a king, died like a grandpa... and woke up as a bratty villain inside a fantasy novel.Nice.Born into the mighty Arkanveil family, he’s expected to grow up spoiled, arrogant, and doomed. But sorry, fate — he’s got better plans.Armed with a broken Proficiency Panel, two god-tier Traits, and the mind of a seasoned conqueror, he’s here to rewrite the script.Demigods plotting. Councils scheming. Demon Emperors laughing.They’re all just EXP waiting to happen.Pretending to be a clueless baby genius, he secretly trains, conquers, and stacks power like a final boss.Because this time, the EX-Rank Villain isn’t playing to survive.He’s playing to win.The world’s greatest families have no idea what’s coming. But hey... they’ll find out soon enough.“EX-Rank problems require EX-Rank solutions.”

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Perfect. That’s what people call Princess Elysia. Blessed with rare red fire magic and trained by the best, she’s the shining jewel of the kingdom of Arvandor. But perfection has a price. When the ruthless Demon Queen Malvoria sets her sights on Elysia, all hell breaks loose—literally.As Malvoria’s army lays waste to Arvandor, Elysia’s life is shattered. Her beloved father, the king, is slain, and her once-peaceful home becomes a battlefield. Forced to flee with her girlfriend, Zera—the fierce daughter of her magic teacher—and her mentor, Lady Seraphina, Elysia’s journey of survival begins.But Malvoria wants more than just a kingdom. She wants Elysia, and nothing will stand in her way. As Elysia’s hidden powers awaken, an unexpected and dangerous attraction sparks between her and the demon queen.

The NPC sets out on a journey to defeat the Demon Lord, joined by beautiful girls he meets along the way.---This is an NSFW story, so if you're under 18, turn back now, son. No NTR, and no full-on Yuri. There might be slight Yuri—like girls kissing and stuff during threesomes—but it's not that kind of Yuri where the girls fall in love with each other while in a relationship with the MC.---