MTL - Gorgeously Enchanting Elementalist: Insidious Evil Emperor’s Airheaded Concubine - Chapter 1409 awesomeness

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

Xu Jiayan is sick, suffering from a condition where he can't stand to see Jiang Yuan cry. Whenever the young girl sheds tears, he just can't help but feel weak in the knees.However, one day, after accidentally catching a glimpse of her slender waist, he feels his condition has worsened.He finds himself wanting to make her cry,yet he has no desire to seek a cure—How fatal!One-liner:A pseudo-sweetheart vs. a true scholar;Childhood friends turn lovers with a twist of love and war;From school uniforms to wedding gowns, only accompanying you.

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.