Ren Fujimiya

Aventris University was supposed to be the beginning of an ordinary life for Ren Fujimiya.

But beneath the city's bright lights lies a hidden underworld ruled by gangs, violence, and power. While most people live their lives unaware, a silent war is slowly spreading through the shadows.

At the center of that world stands Masaki Fujimiya—one of the most powerful and respected figures in the underworld. Feared by criminals and admired by his allies, Masaki has spent years maintaining the balance of power.

That balance begins to collapse when Rokura Hayashi, a dangerous figure long thought to be inactive, suddenly returns. With powerful connections, a growing criminal organization, and a deadly drug spreading throughout the streets, Hayashi starts a conflict that threatens to engulf the entire city.

As gangs clash and tensions rise, Ren finds himself drawn closer to the darkness he once stood apart from. The promise he made, the training he continues to endure, and the path he has chosen all begin leading toward the same destination.

Standing beside him is Yeamori Arisa, a university student and the person who knows Ren better than anyone else. As the distance between ordinary life and the underworld continues to shrink, she remains one of the few people capable of seeing the burden he carries.

With powerful enemies, dangerous alliances, and an underworld on the verge of war, Ren must decide how far he is willing to go to protect the people important to him.

In a world where drugs create monsters, gangs fight for dominance, and strength determines survival—

the greatest battle may be the one that changes Ren Fujimiya forever.