“I’m good at support roles, can I join your party?" Ragdishart, a young explorer, has the ability "Enhancer": an ability only chosen by 1 in 100, and is infamously considered the weakest ability ever. No-one would let him in their party, but little do they know, he holds a second, more powerful ability. "Multitasking", which means he can simultaneously control 10 or more arts. Requring superhuman concentration ability, it take him only 3 minutes to be able to strengthen his physical ability 1024-fold. Hence, Ragdishart is both the “weakest” and “strongest”. In his adventures, he travels to a ruined tower that extends to the moon, called “Lunatic Babel”. When boy meets deity, the story begins. Source: NU

Why do angels take the form of monsters? In this modern age, a colossal tower pierces far beyond the Carman Line a dungeon known as the ‘Celestial Prison’. It is an era where wielding a sword imbued with demonic power, a ‘Demon Sword’, allows one to carve out a life relying solely on brute strength. While many youths aspired to become ‘Demon Sword Masters’, Jinya Kokucho felt no particular interest, instead working diligently at part-time jobs for a shady employer. Ironically, however, he accidentally came into possession of a Demon Sword one day, becoming one of them. Defeating the monsters of the Heavenly Prison, seizing their power, and using it to strengthen both his Demon Sword and himself. As he did so, he gradually came to understand. The peculiar nature of his own Demon Sword, and the reason why the monsters bore the name of angels. (Source: SB Creative, translated)