Maybe a Fake Gintama - Chapter 553: Despite This and That, Let’s Start Again!

Once, because of a pair of purple eyes he was scorned. He is a wangye known across the land, cold and bloodthirsty, looking disdainfully upon the world.

Raised as nothing more than a weapon, Xin Long was kidnapped and forged into a killer — his freedom severed, his name reduced to a whisper. In a world where trust is a death wish and mercy is a myth, he treads a path of blood and betrayal, outwitting ruthless foes and surviving inhuman trials. Yet, the deeper he delves into the shadows of Jianghu, the more he unravels a web of dark secrets that bind the martial world.Step into the dark side of Jianghu and witness the so-called Forgotten Tale — a story never meant to be told...

The traitor Gu Mang returned to his home kingdom again. Everyone rejoiced in his banishment. It was said the one who hated him most was his closest friend – the cold and stoic Young Master Mo.

A rumour: Young Master Mo prepared three hundred and sixty-five methods of torture to try on Gu Mang, enough to play with him for a year without repetition.

But what’s the truth then?

Well the truth is even more unspeakable–

Mo Xi’s identity: the most abstinent commander of the empire.

His relationship with the traitor Gu Mang: they’d slept together before.

- 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.