I'm A Spider, So What? (WN) - Chapter 280: Aftermath of the battles

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

At the genesis of the world, the ‘Dark God Entropy’ was defeated in the fight between the five other Gods, and was sealed.

“Haunted by the Curse's relentless pursuit, one seeks solace in the arms of darkness...”-- -- --Hael Winterlock, the youngest and most beloved prince of the Winterlock dynasty, lived the typical luxurious prince life within the dynasty, with the thought of being just an ordinary rich royal member in the future.But when he awakened the never-before-seen Nine Magical Arcana Runes petals, the law of the Kingdom automatically dictates him as the next ruler of the throne, something that goes against his predetermined fate.And from thereon, life came crashing down for Hael, who had his father killed by his throne-obsessed brothers, and then he himself burnt to coal and flung into the icy depths to drown to death.Just when life seemed over, Hael found a portal and a moon fragment, a rumored source of controllable power at the depth of the sea, and the moon fragment fused with him as he disappeared into the strange portal.There was a new advanced world, a world where an ongoing war between humans who grew with cybernetic fusions, and the Eldritches, creatures of dark magic, raged on.Once more, he was given a chance to change things, a new chance at life.One day, he swore to return to back to Winterfall Dynasty to take what was rightfully his. But only if his dreams could be reality. The Forgotten Realms had another name:The Abyssal Realm of Ruins, a Place of No Return!

The Third World War has been ended by the efforts of Kamijou Touma. With that, he vanished. With the Magic Side regrouping, the Sabbath for their followers has arrived.

In the headquarters of the Science Side, Academy City’s strongest Level 5 Esper Accelerator has washed his hands off the “Darkness.” Along with Last Order and Misaka Worst, his days pass by peacefully with no sign of GROUP.

Hamazura Shiage has formed a new ITEM with Kinuhata, Takitsubo and Mugino. Peace has come to the hands of the alumni who have “graduated” from Academy’s Dark Side at last… at least until a new evil “first year student” appears before them.

— This is a follow up to the popular Toaru Majutsu no Index light novel series, where Kamachi-Sensei has promised to deliver new premises and give a totally new flavor to the fights and plot developments