World Break: Aria of Curse for a Holy Swordsman

His past life and current life are intersecting--a boy with memories of two lives faces his destiny! After his mother was killed at an early age, the orphaned Rio fought his hardest to survive in the slums. One day, he awakens to the memories of Haruto Amakawa, who died in an accident while dreaming of being reunited with his childhood friend, and Rio realizing he has reincarnated in a world of swords and sorcery. Not only that, but after helping stop an attempt to kidnap a princess that he stumbled upon, he finds himself enrolled in a famous school where the children of the nobility gather… As Rio attempts to rise up from the bottom of a hierarchical society, he will have new encounters and say many goodbyes, as he fights to overcome fate.

Riding the bus one day, Sakurakouji Sakura looks out the window to see people being burned alive with a blue fire and a boy her age who's unharmed and standing over the people. She comes back to the site the next day and there are no corpses or evidence of any kind of murder, just a small fire. She then goes to class to find there's a new transfer student, Oogami Rei, who looks exactly like the boy she saw before and wears a black glove only on his left hand. Oogami is a Code Breaker, one who "does not exist". He is a seemingly cold-blooded killer who follows the principle of "an eye for an eye", to "use evil against evil". Convinced that killing is not right, Sakurakouji sets out to stop him and penetrate his icy heart.

When a classroom of students is transported to another world to act as its saviors, Hajime Nagumo finds himself the weakest link. As his friends and classmates are granted strong classes and impressive abilities due to their existing skills, he is given the weak title of Synergist. When a dungeon quest leaves him separated from his group, Hajime must discover his own talents or be left to rot in this world forever.

In this modern magic action story, Takeshi Nanase is an ordinary high school boy who has a somewhat dark past. Due to certain circumstances, he formed a "fake" couple with his childhood friend Kurumi Isoshima, but otherwise, he lives a normal life. However, one day, he comes across a girl named Mui Aiba, in a uniform he has never seen before, collapsed on the school campus. This encounter changes Takeshi's destiny completely. Mui tells Takeshi that she is a magician, and she apologizes, for she turned Takeshi into a magician, too. What Takeshi once knew as one world is actually two — the world where magicians live and the world where humans live.