Soul Eater. Main series

"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...

"Shinigami-sama summons the strongest weapons from around the world to contain the rogue kishin and the spread of his madness. As these powerful weapons strategize for what will be the most difficult battle of their lives, the students of DWMA try to get back to their normal lives as best they can. For Maka, adjusting to the dangerous times is nothing compared to Crona's stuggle to adjust to life as a DWMA student!" -- from publisher's web site.

"Crona's loyalties are torn as Medusa regroups and plots to beat both DWMA and her sister, Arachne, in the arms race for Eibon's demon tools. As the madness of the Kishin continues to spread, Maka, Black*Star, and Kid begin even more rigorous training to master their weapons and work together as a team. Will they be ready to face Arachnophobia in time for their next mission? Or will internal strife tear them apart?!"--Publisher's web site.

"Arachnophobia has taken the offensive and spreads the Kishin's madness throughout the world, using 'BREW' to threaten anyone who stands in their way. In the wake of attacks at home and abroad, DWMA sends its top students to quell the madness and gather information wherever they can. But the madness is spreading much quicker and is stronger than they had anticipated. When confronted by an incarnation of the Kishin's madness itself-- the sinister Clown--...

"As Maka and a team of DWMA students slip into Baba Yaga Castle in the guise of Arachnophobian guards, Black*Star opts for his usual style of entrance: loud and without a trace of subtlety! But although Black*Star doesn't seem to have changed much on the outside, inwardly he has at last found the way to harness the true power of the Uncanny Sword. And that means he's ready to test his blade in a round three rematch against swordsman Mifune! Will Black*Star's...

"The enemy of my enemy is-- still my enemy?! As the madness of the Kishin continues to threaten the world, Noah and Medusa race to find Asura and ally themselves with him. With Noah reliant on demon tools and Medusa on her experimental black blood, DWMA must devise ways to combat both evils while trying to seek and destroy Asura themselves!"--

Kid's sense of order stands in sharp contrast to the unpredictable madness of the Kishin. But order and madness are two sides of the same coin. When Asura challenges the "tyrannical" Shinigami and his laws that serve to control humans' lives, Kid can feel the tendrils of madness within himself seeking purchase. The bonds of his friendships and his faith in order are tested to their limits as Asura makes his final stand against the forces of DWMA....