Primordial Heir: Nine Stars - Chapter 12: Academy City Elysia/ Nine Stars

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

Karl Adelheit, a self-proclaimed ordinary student returning from military service.

And a nobleman who enlisted as a soldier and received Medals of Honor.

At the Edge of the Void…A soft blue light hums, pulsing with energy, its robotic voice ringing with purpose.> “Do you accept me, System 0404, the Harem-Building System?”A young man in his twenties, eyes shining with excitement, eagerly responds:> “YES!”The blue light flares—The universe shifts—The binding process begins—DING!> [System Successfully Bound to…]…Daphne Han???????***System: “If you’re going to RUIN the harem-building mission, I’m not helping you!”Daphne: “Okay, I’ll just win without you.”System: “…Wait, what?”***World one:Male Lead: “Why are my offers disappearing?!”Daphne: “Oh? Maybe you just weren’t talented enough.”System: “YOU CAN’T JUST DELETE THE PROTAGONIST!”Actress #1: “Wait, I actually love acting, not this forced romance subplot?”Actress #2: “Oh wow, working under Daphne is way better than chasing ML’s validation.”Male Lead: “WHERE DID MY HAREM GO?!”System: “DON'T RUIN THE PLOT!”Villainess: “What do you want in return for everything?”Daphne: “You.”System: “NOOOO, SHE’S SUPPOSED TO BE HIS FINAL LOVE INTEREST!”World two:Emperor: “You were supposed to compete for my favor!”Daphne: “Nah. I’m the one with favor now.”Heroine: “Can I join your court instead?”System: “THAT'S NOT HOW HAREM DRAMAS WORK!”***CEO: “I was supposed to be her fate!”Demon Lord: “SHE WAS SUPPOSED TO REDEEM ME!”Imperial Prince: “What do you MEAN she’s not interested in me anymore?!”System: “THIS IS NOT HOW THESE STORIES WORK.”

This novel is also known as Almighty Video Game Designer

Chen Mo a game designer got sent to a parallel world with advance technology but undeveloped game concepts.

Watch as he redefines the world’s gaming industry with the games he remade from his old world.

- Description from Novelupdates