Soul Eater by Ohkubo Atsushi
"Maka is a weapon meister, determined to turn her partner, a living scythe named Soul Eater, into a powerful death scythe — the ultimate weapon of Death himself! Charged with the task of collecting and devouring the tainted souls of ninety-nine humans and one witch, Maka and her fellow meisters strive to master their weapons as they face off against the bizarre and dangerous minions of the underworld. But the meisters’ own personal quirks may prove a bigger obstacle than any sultry enchantress!"
I decided to to one of the big ones, seeing how it ended recently (and might I add, in the best way possible: with boobs!), though Soul Eater NOT! will continue. This manga has some of the most interesting characters and settings, but I must admit, I wasn’t able to fully comprehend the story sometims… Nonetheless, this is a must read for everybody!