The true evil had conquered the planet, as heroes had turned to ashes. Cities massacred, no mercy given, forsaken, every nation had fallen— leaving only despair behind for the only hero left.
The sole survivor, Styril, a man of conviction who failed miserably at the face of true power. Crippled and devastated. Lying on a pool of his blood, he had no choice but to sacrifice. By cutting off his right arm along with the souls of many, he used them as a medium to turn back time 10 years ago... as a villain.
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Theme: Non-mainstream weapon
And the character (Bondrewd) in the book cover is not mine, and these are the sources:
1. https://danbooru.donmai.us/posts/2936874?q=bondrewd
2. https://mobile.twitter.com/i/web/status/923691967816482816
Drawn by @riasgomibako (in Twitter)