Harry Potter: Ero World - Chapter 104: Deals and Secrets! Part-1

What would you do if one day you were suddenly told that the gods weren’t just beings from Myth and Legend but an undeniable truth? Would you laugh? Scoff? Or maybe even ignore it altogether. For a young man called Aiden, his choice was simply a mixture of all 3. but when confronted with Divine soldiers that could call forth terrifying flames at just thought, there was no room left for denial. These Divine Soldiers not only informed Aiden of his divine heritage but also invited him to join Olympus Academy, a place known as the training ground of the gods. For most people, such a revelation could leave them questioning reality for several weeks, but for someone bogged down with life like Aiden, it wasn’t a crisis but a once in a lifetime opportunity! As Aiden arrived at the academy he discovered not only was h e talented but hsi genius was so monstrous it made even the gods start paying attention. from then on Aiden didn’t hold back he blazed forward fearlessly, smashing giants, crushing tians and even duelling against the gods. Follow Aiden as he traverses across mystical realms, fights against monsters and creatures of legend and does something unseen since ancient times, to reach for the domain of the gods and surpass it!

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates