Abyss of Secret Spirits

They fled to our world and turned the war into a gift. The price of gifts is souls. ——— My name is Fanyun, I am 18 years old. My worries yesterday were exams and studying. Today, I have become a monster, an alien, and the hope of the world. I hold the seven original sins in my hand, each one makes me stronger, each one makes me fall. The chase continues, but the chess players are already in position. In this game of chess, two worlds are at stake. Should I win, or flip the board?