Kekkaishi manga

Ginta Toramizu is a 14-year-old kid who doesn't have a lot going for him: he's near-sighted, doesn't do well in school, sucks at sports, and to top it off--he's short! But Ginta is a dreamer and has had the same dream 102 times, always in the same fantasy world, where he is a hero blessed with all the abilities he lacks in real life.
Then one day a supernatural figure appears at Ginta's school and summons him to a mysterious and exciting new world! In this strange universe filled with magic and wonder, he is strong, tough, agile--and he can see without his glasses! Thus, Ginta begins a mystical quest in search of the magical items known as "ÄRMS," one of which may have the power to send him home. Joining him on this epic journey are his companion Jack and the valuable living, talking, mustachioed iron-ball weapon known as "Babbo," which everyone wants but, it seems, only Ginta can possess! 

"Elemental Gelade: Follow the story of two people that cross paths on a fated day that they meet."
Coud is a young sky pirate, he is an adventurous young man. Maybe it's due to lack of education from living in the sky most of his life he is kinda close to the dumb side. but still he gives it his all when the time come to fight.
Ren is a seemly lovable young girl, however she and many others in this world are called Edel Reid, ones whom can give power to that of one other person that would be chose:
The Pleage, a pact that binds for life, with beautiful Songs that Awakens they're power.
......................................
At first what seemed like a routine mission, turns out more to be the beginning of a journey, through difficult fights, after fights Ren and Coud grow stronger together. The Journey to Edel Garden the place Ren wants to go no matter what.
but being the possessor of a rare stone called the Elemental Gelade, the source of her power, she is pursued by whose who could catch her for selfish reasons and some people that want protect her and all Elde Reids, however it is there is going to be many troubles ahead.

An ordinary high school girl, Seonu Lin is actually a saint holding the 'Jade of Bango', the power of ancient times. On her sixteenth birthday she obtains special eyesight seeing, and goes to school every morning with the harmless and lovely ghosts. One day, however, she has an inspiring dream, and that evening, she encounters a terrible evil spirit. She is shivering in horror, but in the very nick of time a handsome man she had only seen in her dream before hand appears to rescue her. He also releases Lin's 'Jade of Bango' power. His name is In-Mu, who says to her that he is her fiance, as well as her guardian. With other guardians coming to take his place as her fiance, what could possibly go wrong?

The demon queen subdued enormous and powerful monsters and slaughtered over half of the world's population. Surviving members of the human race elected a hero to slay the demon queen, beseeching release from her oppressive rule. However, he questions his mission to eradicate the monsters: in his opinion, they too are conscious and alive, and so he anguishes over that fact. Sheila the Demon Queen became interested in him and joined his journey, hiding her identity and with the plan to kill him after she has gained his trust. Eventually, she realizes that she fell in love with the hero, and hence their journey begins...

A young boy is saved by a mysterious gunfighter who uses magical bullets. She is the greatest magician in the world but disappears shortly after saving him. Having fallen in love with her, he trains to become a gun fighter and ten years later, his search comes to an end but his adventure has just begun.

From VIZ:
Kurohime is a buxom witch with the power to control magical guns. She once made the mistake of challenging the gods and was cursed for her foolishness! Transformed into a little girl named Himeko, she can only regain her former body and powers when she falls in love. But finding love in a world fraught with evil is no easy task.

IMPORTANT!! Read chapters with a #2 near them after Volume 2 Chapter 5

A miniseries prequel about the encounter between Rain and Zol.

This is a prequel to Immortal Rain set before Machika's birth. Machika's grandfather Zol, who works as a bounty hunter by the name of Grim Reaper, encounters Rain, who turns out to be Methuselah, the most wanted man in the world.
Why did fate bring these two men together and what is hidden behind Rain's clumsy and kind personality?

Raina Lute is a lazy student of Roland Empire Royal Magician's school. One day, Roland Empire goes to war against a neighboring country Estaboole, and he lost his classmates in the battle. After the war, Lute sets out for a journey to search the relics of

A powerful sorceress, Felicia Rand Philistin, once tried to conquer the nation of Shurian. In her wake of terror and destruction, a single man stood up and rebelled against her oppression and domination. The people called him Maian the Brave (Yongja Maian) and it was he that sealed the evil sorceress.

A thousand years later, Fenix Maian in a strange twist of fate releases the sealed sorceress that his ancestors have tried so hard to keep imprisoned. Now he has to keep the sorceress from taking over the world once again...

It centers around the travails and battles of one Ushio Aotsuki (??? Aotsuki Ushio), who is constantly being stalked and aided by a gigantic, supernatural and sometimes invisible tiger (Some people describe it as akin to Calvin and Hobbes on acid, but I disagree).
Ushio's family maintains a Buddhist temple in Japan, where ~500 years ago, his samurai ancestor battled that same tiger to a standstill, and eventually trapped him against a rock using a blessed spear called the "Beast Spear", which in addition to its intrinsic formidability as a weapon, can also boost the physical powers of the user. While cleaning out the temple storage, Ushio accidentally unseals the chamber Tora was trapped in. Initially, Ushio wisely refuses to remove the spear pinning Tora (??, Japanese for tiger) down, as Tora unwisely makes the strategic blunder of mentioning that the first thing he would do upon being freed would be to devour Ushio; but Tora's unsealed presence attracts various demons to the premises, and Ushio is forced to free Tora in exchange for his help. The series focuses on their relationship, interspersed with battles against mythological foes, and with Tora's attempts to grapple with modern life and gobble up Ushio.
* volume 34 is actually the side story volume (gaiden)

Pandora's Box was a cursed existence. Through the curiosity of a woman, evil was unleashed and very nearly covered the world in darkness. Miraculously, humanity managed to seal Maou Kestra back into the box but with immense sacrifices. Even without their