Romantic Killer

Ohma Tokita enters a hidden world where corporate disputes are settled in brutal gladiator bouts. Forget the money, he just wants to fight — and win.

Angsty Syd navigates high school awkwardness, family drama and an unrequited crush on her best friend while trying to rein in her budding superpowers.

After a global financial crisis, the world is engulfed in an AI-driven "sustainable war." It's up to Section 9 to counter new forms of cyber threats.

Many years ago, the last remnants of humanity were forced to retreat behind the towering walls of a fortified city to escape the massive, man-eating Titans that roamed the land outside their fortress. Only the heroic members of the Scouting Legion dared to stray beyond the safety of the walls – but even those brave warriors seldom returned alive. Those within the city clung to the illusion of a peaceful existence until the day that dream was shattered, and their slim chance at survival was reduced to one horrifying choice: kill – or be devoured!

Akuma Kun, a boy raised by a demon, works with his half-human partner Mephisto III as paranormal investigators to solve various murder and mysteries.