Last Bosses in Heroless Worlds

In the light novel 'Last Bosses in Heroless Worlds,' readers are introduced to six formidable 'last bosses' from different worlds who are brought together by a mysterious girl with the intention of saving various realms. The story follows a rogue AI, a mad scientist, a fallen angel, a battle-hungry hero, an alien queen, and a mutant/abnormal as they navigate through action-packed, comedic, dramatic, ecchi, fantastical, harem-filled, romantic, sci-fi, and supernatural adventures. With themes of alternate worlds, artificial intelligence, heroes, monsters, and tragic pasts, this Japanese light novel offers a unique blend of genres for readers seeking an exciting and diverse narrative.