Lord of the Sky City - Chapter 765 - 727: Magic Panther Destroyer

Always looked down upon by others, Ji Feng gains technology far more advanced than the present, as he discovers its abilities, he begins to walk a path far from ordinary. With X-ray vision allowing his to find jade stones in rocks. With this futuristic technology, Ji Feng accomplishes something no-one can compare to. This is the beginning of a legend.

- Description from Novelupdates

A nuclear war ushered in the prosperity of human evolution! The higher the bloodline level, the stronger! The young Mo Tian, ​​awakened at the beginning of the S-class King Kong is not bad blood, incarnates the big muscle tyrant, killing all the way! If you are reasonable with me, be reasonable, and if you are not reasonable, you will be blown away!

The blood of King Kong is not bad for the first time to return to the ancestors…the second time to return to the ancestors…the Nth time to return to the ancestors, the blood of Pangu! (The killing is decisive, the extreme way pushes the flow horizontally, if you are not a virgin, do not enter if you are not happy)…

- Description from novelbuddy

An angel made a mistake, resulting in Shiihara Daiki’s death. In order to hide the mistake, he was then sent to a different world. The angel will grant him one wish as a payment for keeping it a secret. Daiki asked for a Heavenly Castle floating in the sky without hesitation.

Suddenly a floating castle appeared in the new world, which causes confusion amongst the people. They attempt to contact Daiki in various ways. A country tries to steal it by force, while another seeks to befriend him. What in the world would Daiki do?

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.