If you're looking for manga similar to Houki Sekai no Alea to Erla, you might like these titles.
The boy who is a prestigious demon, Yuri, helped the fallen witch, Vie. Two people are attracted to each other, but they both have a secret?!
Will, a boy who can use healing magic, escapes a research facility with his older sister. Together they travel this broken world to unravel the secrets of his origin.
Ever since Xiao Qiao was little, she's loved mythical fantasy books about magicians and can't wait to grow up to be an author so she can lose herself in magic! She's always believed that one day a magician will appear and take her away to a magical land, but nobody believes in dreams nowadays--or do they? One day, whilst daydreaming on the way home from school, Xiao Qiao falls down an uncovered drain and finds herself not in a sewer but in another country with two moons... and a less than ecstatic young magician called Liang! Not only is she disappointed to learn that wizards' magic only matures when they reach eighty, but there are also no modern conveniences such as electricity or cell phones. Is Xiao Qiao going to be able to enjoy her "dream come true" after all? And will she ever manage to find her way back home?
1000 years ago, a war between humans and space witches ravaged the stars, destroying countless planets and taking even more lives. Eventually, the humans captured the most powerful witch and imprisoned her as a war criminal under the treaty. The castle where the Magic Lord is sealed away is watched over by a village where everyone has developed weak magical powers—everyone but Mugi, that is. Determined to prove that he doesn't need magic, Mugi accidentally flies into the monster-infested forest surrounding the castle and is saved by a girl that he has never seen before...
Long, long ago four witches of great power were sealed away in a mysterious kingdom ruled by a mysterious king. To this day, the legends say that the one who finds their graves will have their wish granted - however impossible that wish may be. Daidai, a girl who escaped from the king's treasury, believes in those legends and starts her journey through the magic kingdom, accompanied by Matsuba, a small boy-robot who loves her. What really is their destination? And what wish shall the graves of the four witches grant the unlikely companions?
A small witch, Lina, whose life is aimed at by the kingdom. It was a monster orc that appeared in front of her and saved her as she was captured by the guards. Witches that are targeted by humans and monsters that are hated by humans. A strangely warm story of two strange people who met and acted together.
Magicians, people with magical powers that have caused their kind to be hated and feared throughout the centuries. Tales of magic for both good and evil, the struggle to fit into society, and a dark past that haunts them both.
“Kouichi, Marry Me!” That is the wish of Rinko, the descendant of a pure blooded witch family. The her family's customs forbid matrimony between a witch and a human, however Rinko refuses to abide by that tradition since she fears witchcraft. Instead of resorting to violence, the family's elder agrees to let the “cupid” do its work. The cupid, Rui, informs Rinko that in order for both sides of this conflict to come to an agreement, she must meet the groom candidates that the elder prepared for her, or else she will lose everything, including her beloved, Kouichi. For Kouichi’s sake, Rinko agrees to this and begins to face a long line of groom candidates that await her!