Multiversal Ascension - Chapter 92: Meeting with the Principal

In this world, people are granted a power said to come from the heavens, a mighty weapon tied to the soul of humans. Those who receive these magical weapons fight against monsters to survive, driving the economy of this world.Lian is just an ordinary boy until his world is turned upside down when another race takes away what matters most to him: his family. From that moment, follow Lian's journey as he seeks the strength to avenge those who killed his family and uncovers the truth behind his power.

I, Ning Daoran, have achieved what I have today step by step, relying solely on my own efforts!

A dancer who was killed by a serial murderer found himself occupying the body and taking on the life of Brian Morse, a patient with anti-social personality disorder. As Brian, he has the look, he has the brain, he has the charisma, but he also has something that somehow always attracts psychopaths…[The story mentions 3 reality shows and crossovers with the American drama series Dexter. SLASH]

- Description from Novelupdates

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.